IW612 bluetooth crash after a few days Hello, One of our users reported us a bug with the murata LBES5PL2EL-923 (IW612 core) bluetooth functionality, where the bluetooth stack crashes after a few days connected to a device over bluetooth static RFCOMM/SPP (The original report is public and available in Japanese at https://armadillo.atmark-techno.com/forum/armadillo/31772 ) Are there any known bugs about this? Software setup: * linux 6.12 based on lf-6.12.49-2.2.0 (exact source tree: https://github.com/atmark-techno/linux-6.12-at/tree/6.12.105-r0 ) this is a BT problem but in case it matters the wireless driver is based on mwifiex lf-6.12.49-2.2.0 * firmware updated to the latest from the imx-firmware repo at lf-6.18.20_2.0.0 https://github.com/nxp-imx/imx-firmware/tree/lf-6.18.20_2.0.0/FwImage_IW612_SD * BlueZ stack (currently confirming the exact version, sorry I forgot to ask) * the board is connected to a single device over *bluetooth classic* (not BLE), with RFCOMM/SPP. Every 60 seconds the application sends a message and gets a reply (simple polling). After a few days there is a command timeout and the BT driver restarts I've attached a firmware dump (obtained from /sys/class/bluetooth/hci0/devcoredump/data after crash happened), assuming it can be useful, there is no message in dmesg until the crash (I'm sorry it's truncated before the "Start FW dump" message so there is no timestamp for these, my understanding is that it was immediately afterwards) The FW reloading mechanism works, but this requires a reconnection so would be better addressed if possible. [ 0.000000] Linux version 6.12.105-0-at (builder@71056255c5a6) (aarch64-alpine-linux-musl-cc (Alpine 15.2.0) 15.2.0, GNU ld (GNU Binutils) 2.45.1) #1-Alpine SMP PREEMPT Mon Aug 24 07:48:35 UTC 2026
[...]
[ 9.321032] wlan: version = SDIW612---18.99.8.p52-MM6X18540.p33-GPL-(FP92)
[...]
[ 10.349326] Bluetooth: hci0: FW already running.
[ 38.303160] Bluetooth: MGMT ver 1.23
[170117.376944] Bluetooth: hci0: command tx timeout
Bluetooth: hci0: ==== Start FW dump ===
Bluetooth: hci0: ==== FW dump complete ===
Bluetooth: hci0: Request Firmware: nxp/uartspi_n61x_v1.bin.se
Bluetooth: hci0: FW Download Complete: 412940 bytes If there is any other information that would be useful for analysis please ask Thank you Re: IW612 bluetooth crash after a few days > 1.Is it possible to provide us the HCI logs as well as that will help to identify which command is getting timeout for which the firmware dump is getting generated. Could you clarify what you mean with this? Is there a command that can be run after the fact, or should we run hcidump or equivalent to dump all commands while the process is running? > 3.To get Wi-Fi driver loading parameters, you can provide us the: /lib/firmware/nxp/wifi_mod_para.conf We do not use this file so default parameters should be used here as well. We've reduced the log level from the default values so dmesg will not be of much help here either (I sent a link to dmesg in the previous reply) I'll check with our user if they use wifi at all during this time Re: IW612 bluetooth crash after a few days Hi, @martinetd
1.Is it possible to provide us the HCI logs as well as that will help to identify which command is getting timeout for which the firmware dump is getting generated.
2.Can you please provide the WLAN based use case as WLAN is running then check if WLAN is working fine during the firmware dump is getting generated?
3.To get Wi-Fi driver loading parameters, you can provide us the: /lib/firmware/nxp/wifi_mod_para.conf
or you can provide us a normal booting dmesg logs which including the whole process that WiFi/bluetooth loading. We can get the info from dmesg logs.
4.Currently, we do not have newer public github FW release than the one you are using:
imx-firmware/FwImage_IW612_SD at lf-6.18.20_2.0.0 · nxp-imx/imx-firmware · GitHub
So, I do not think this is an known issue.
We prefer to have more info related to the use case and hci logs to track what happened or reproduce steps so that we can reproduce the issue locally.
So if you have any further other info related to the issue, please share with us.
Best regards,
Christine. Re: IW612 bluetooth crash after a few days Hi @Christine_Li thank you for the quick reply > 1. If you are using btnxpuart driver, please help to provide me btnxpuart.c. We are using the btnxpuart provided in https://github.com/nxp-imx/linux-imx based on version lf-6.12.49-2.2.0 , you can find the exact file here https://github.com/atmark-techno/linux-6.12-at/blob/6.12.105-r0/drivers/bluetooth/btnxpuart.c > 2. Are you using Wi-Fi and Bluetooth/802.15.4 combo FW? Or you are using separate FW? We are using both: the wifi driver loads the combo FW at boot, and after crash the separate FW is reloaded (hence log naming the separate FW) When this crash happened the combo FW was loaded (first crash after boot) but my understanding is that it reproduces with both > 3. Can you please help to provide your Wi-Fi and Bluetooth driver load parameters? The only wifi parameter we explicitly set is drv_mode = 0x3 to disable the wifi direct interface we do not use; we do not set any bluetooth parameter. If you can tell me how to dump the exact settings I can ask our user to run commands to get the info for us. > 4.Can you please let me know your detailed reproduce steps? Since this is based on a user report I can't say much more than the description I gave (RFCOMM connection polled every 60s for a few days); I'm afraid it might depend on the actual sub device the chip is connected to. I'll try to find a device that can be pinged over RFCOMM and reproduce locally to provide you with a test script if that helps, but for now I couldn't find any release note with known bugs for the firmware/btnxpuart driver so I'd like to confirm if there is a known bug (and hopefully if you can get any information from the firmware dump) Thank you Re: IW612 bluetooth crash after a few days Hi, @martinetd
1.Are you using our nxp's btnxpuart driver for bluetooth? or you are using Linux Open Source Uart driver?
If you are using btnxpuart driver, please help to provide me btnxpuart.c.
2.Are you using Wi-Fi and Bluetooth/802.15.4 combo FW? Or you are using separate FW?
Because I see your log as below, so I just suspect you are using separate FW, need to double confirm with you.
hci0: Request Firmware: nxp/uartspi_n61x_v1.bin.se
3.Can you please help to provide your Wi-Fi and Bluetooth driver load parameters?
4.Can you please let me know your detailed reproduce steps?
Best regards,
Christine.
Re: IW612 bluetooth crash after a few days > * BlueZ stack (currently confirming the exact version, sorry I forgot to ask) in case it matters, the BlueZ version is 5.82 Re: IW612 bluetooth crash after a few days Hi, @martinetd
1.For btmon:
==>Yes, if we could record the whole process for size reason, then I think the method you recommend would be a good idea. And also, we have not other better ideas than that one.
2.For FW dump:
I will recommend to load driver with drvdbg=0xa0037, it can record more fw dump and also driver dump logs for analysis.
issue happened
logs will automatically save in this directory like below:
========================================
[ 4221.173141] Create directory /data/dump_4220 error, try create dir in /var
[ 4221.173147] Wakeup device...
[ 4221.173231] Create directory /var/dump_4220 successfully
[ 4221.173232] Directory name is /var/dump_4220
[ 4221.173233] === START DRIVER INFO DUMP===
[ 4221.173289] DRV dump data in /var/dump_4220/file_drv_info
[ 4221.173306] Wakeup device...
[ 4221.173889] SDIO Func0 (0x0-0x9): 43 03 06 00 07 00 00 02 03 00
[ 4221.175173] SDIO Func1 (0x4-0xb): 00 00 00 00 ff ff ff ff
[ 4221.175879] SDIO Func1: (0x4c) 00 (0x50) 08 (0x54) 07 (0x55) 0c (0x58) 10 (0x59) 00 (0x5c) 00 (0x5d) 00
[ 4221.176284] SDIO Func1 (0xc0-0xca): dc fe 96 00 31 11 00 37 37 02 20
[ 4221.177301] |
[ 4221.275861] SDIO Func1 (0xc0-0xca): dc fe a1 00 3b 00 00 37 37 02 20
[ 4221.276501] Drv info total bytes = 263150 (0x403ee)
[ 4221.276503] === DRIVER INFO DUMP END===Wakeup device...
[ 4221.276555] ==== DEBUG MODE OUTPUT START: 4220.878602 ===
====================================================
If the dump is not auto-generated at "/var" or "/data" it can be collected manually using below "cat /proc/mwlan/adapter0/fw_dump > file_fw_dump" command.
2. If you check it doesn't print the directory in dmesg logs or in your case, you decrease the log level, then please get it in below way:
- echo debug_dump > /proc/mwlan/adapter0/config
- Wait for some time (1 or 2 min)
for fw_dump:
- cat /proc/mwlan/adapter0/fw_dump > file_fw_dump
for drv_dump:
cat /proc/mwlan/adapter0/drv_dump > file_drv_dump
For such kind of FW crash issue, btmon log is the extended logs to better understand customer's use case and also issue scenarios. FW_dump is the most important logs for us.
And also, as discussed before, please also ask your customer about wifi use case during this test.
Best regards,
Christine. Re: IW612 bluetooth crash after a few days > btmon Thank you for clarifying The crash takes a couple of days to reproduce, and I'm afraid it might not be practical to store/share a full log given how big it gets (I see 100KB after a minute so ~300MB in 2 days) Unfortunately btmon does not seem to have a "cyclic recording" mode like tcpdump, but if you're only interested in the few minutes before the crash then I can request our customer logs alternating two files every e.g. 5 minutes so we can get the last 5 minutes? Would something like (untested) be acceptable, sending the last samples? (note there is a small window between runs where events are not logged...) I=0; while ! [ -e /sys/class/bluetooth/hci0/devcoredump/data ]; do timeout 300s btmon -K -t -w log.$I; I=$((I+1%3)); done > coredump not readable Ok, this is a shame but there is not much to do about it. The file was obtained reading from /sys/class/bluetooth/hci0/devcoredump/data after the FW dump complete message, if that is not appropriate or there is a better way to get useful data I'll be happy to oblige but let's focus on the btmon traces for now. Thank you Re: IW612 bluetooth crash after a few days Ok for btmon, I will request that (and ask about wifi usage) I'd like to confirm fw dump first though: the dump I obtained was a bluetooth dump, but you seem to describe a wireless dump. In the traces from customer the wifi driver did not seem to crash, so I believe drvdbg= will not be effective there? Also in case you do need the wireless firmware in the combined firmware case (with `echo debug_dump > /proc/mwlan/adapter0/config`), the problem is that the BT driver automatically reloads a new firmware and restarts the adapter, so we would need to disable the firmware loading for this to work I agree having a dump is useful for analysis so if it's possible to fix the way the dump is obtained I'd like to know first, I'll ask our customer everything at once after we're clear on what to do Thanks Re: IW612 bluetooth crash after a few days Hi, @martinetd
Could you clarify what you mean with this? Is there a command that can be run after the fact, or should we run hcidump or equivalent to dump all commands while the process is running?
==>hci log can be captured after enabled Bluetooth/BLE with below commands:
btmon -w failed_snoop.log &
Then customer execute their reproduce steps, and try to reproduce this issue.
The failed_snoop.log will record all of the process of bluetooth/BLE.
Once issue is reproduced, we can check this log to see what kind of commands/events are executing, so that we will have some related suspects.
It is not a command to run and capture the failed logs after FW crash.
By the way, I requested our internal expert team help to decrypt the provided fw dump bin file: fw_devcorecump.bin, but unfortunately, it is not getting decrypted successfully. It seems like file is corrupt or not having enough data so not able to decrypt.
Best regards,
Christine.
Re: IW612 bluetooth crash after a few days Hi, @martinetd
Yes, you are right.
Because the issue is difficult to reproduce, we also prefer to capture full logs that we need.
I checked with our internal team that from BSP 6.12.34 onward, the btnxpuart kernel module detects that IW612 narrowband firmware is stuck. It proceeds automatically with a recovery process by resetting the narrowband CPU and downloading it again. The BT FW dump will automatically generate. When command timeout happens, at that time it will generate.
So, you are right. Do not need to provide Wi-Fi dump and only provide BT FW dump and also hci logs if possible. And also about WiFi use case and scenarios, please also help to provide.
Best regards,
Christine.
Re: IW612 bluetooth crash after a few days hi @Christine_Li Sorry for the slow reply we're in the middle of public holidays here > Because the issue is difficult to reproduce, we also prefer to capture full logs that we need. Ok, I will try to get as much as possible from the customer and also see if I can reproduce myself over the next week or two > I checked with our internal team that from BSP 6.12.34 onward, the btnxpuart kernel module detects that IW612 narrowband firmware is stuck. It proceeds automatically with a recovery process by resetting the narrowband CPU and downloading it again. The BT FW dump will automatically generate. When command timeout happens, at that time it will generate. > So, you are right. Do not need to provide Wi-Fi dump and only provide BT FW dump and also hci logs if possible. And also about WiFi use case and scenarios, please also help to provide. Thank you for confirming the Wi-Fi dump is not needed, but that leaves me in a pinch about the BT dump: The dump I sent in the original post comes from what the btnxpuart module automatically generated, and I have no reason to believe it was truncated (the size is similar to what I get when I artificially generate a dump by writing 1 to /sys/class/bluetooth/hci0/device/coredump ) The way it was obtained was just reading (cat) from the data file after the crash was complete: cat /sys/class/bluetooth/hci0/devcoredump/data > fw_dump Is there a more appropriate way to get the dump? Also, please forgive the naive question, but was the dump I sent opened as a BT dump? I'll recap everything to our customer tomorrow regardless of this point, but I'm quite worried that we'll just send a new dump that won't be openable again, so it'd be great to clear this up. Thank you Dominique Re: IW612 bluetooth crash after a few days Hi, @martinetd
Thanks for your feedback.
About FW dump. Yes, I totally understood your concerns about FW dump.
So, I double checked with our internal team and also double checked our Application Note document: AN14710. The procedure followed by you to capture FW dump appears to be correct, specifically for the BTNXPUART driver.
I will check with our internal expert team to see if they can identify any useful information from the current your shared dump file. There might be something else need to be done which I am not aware so I will check with core R&D team.
For HCI log.
In the meantime, please also help obtain the HCI logs from your end customer. This will allow us to analyze the HCI command sequence and determine whether we can reproduce the issue on our side.
For Driver and FW version:
Besides, to double confirm the FW and Driver version, please also help to read it from board.
I know you already mentioned that you are using:
Driver: mwifiex lf-6.12.49-2.2.0
FW: lf-6.18.20_2.0.0 https://github.com/nxp-imx/imx-firmware/tree/lf-6.18.20_2.0.0/FwImage_IW612_SD
But if you can read it from the board dmesg logs, it will double confirm for us. Thanks a lot.
dmesg | grep wlan
Then it will show the WiFi and FW version like below:
[ 7.573794] wlan: version = SDIW612---18.99.8.p52--MM6X18543.p18-GPL-(FP92)
Other info.
Also for your information, we do not encourage to use the mismatched Driver and FW.
For example: you are using driver based on lf-6.12.49-2.2.0, but FW is based on: lf-6.18.20_2.0.0. Instead, we encourage to use the matched FW and driver version with same tag.
Best regard,
Christine. Re: IW612 bluetooth crash after a few days Thank you for the quick reply, I'll come back to you with the hcilog when our customer can provide it Regarding the version, I agree with you, we've only upgraded to the latest version in case it was fixed there and it's easier to upgrade just the firmware on a test machine; the problem also occurred with the 6.12.49-2.2.0 firmware. The version from our user's dmesg (with the original coredump) is as follow: [ 9.321032] wlan: version = SDIW612---18.99.8.p52-MM6X18540.p33-GPL-(FP92) Thanks Re: IW612 bluetooth crash after a few days Hi, @martinetd
Thanks for your quick reply to provide us the requested driver and FW version info.
So from your side, please help to provide HCI logs + WiFi and Bluetooth use case and FW dump together.
From my side, I will request our internal team to check current FW dump.
Once have any updates from our each side, please share together here.
Thanks and Regards,
Christine. Re: IW612 bluetooth crash after a few days Hi @Christine_Li Thank you for checking with the firmware team about the dump, it's great to read that they were able to decrypt it! I'm curious about the watchdog timer, the dmesg we obtained from the customer had a timestamp of 170117s (= 1 day 23 hours 15 minutes 17 seconds) so I'm surprised, but I will ask our customer About the precise reproduction step I've actually been busy with another unrelated issue and haven't found time to try to reproduce myself, I'll hopefully get back to you by the time you're back from holidays. I'll also send logs as soon as I get them (unfortunately no ETA, but feel free to put the issue on hold until you hear back from me if that helps internally) Thank you, Dominique Re: IW612 bluetooth crash after a few days Hi, @martinetd
Did you get any chance to receive the HCI logs together with FW dumps and also requested info from your customer?
Best regards,
Christine. Re: IW612 bluetooth crash after a few days Hello, @martinetd
Our internal team has been able to decrypt the firmware dump, and below are the findings.
WDOG_TIMEOUT after 7.5 days uptime - no fault, no corruption, valid code executing when watchdog expired.
2 BT links and both in SNIFF mode - no active BT traffic at crash
So from this it looks like there is a difference between what your customer is saying and what we are seeing from the dump. Please help to get feedback for below:
HCI dump logs (btsnoop/hcidump) from your customer around crash time.
Exact test steps- number of devices, profiles (SPP/A2DP/HFP), what triggers every 60 seconds, payload size, single vs 2 devices?
Also, can you help to get the ETA for the logs?
Without logs, it will be hard to find the root cause of the issue.
And for your info, I will start my public National holiday from tomorrow(Oct 1st to Oct 7th) for 7 days, will come back to office on Oct 8th. During this period, please allow me have delay reply. And for sure, I will have a back up in our Mexico team during this period. She/he will continue to support for urgent issue. Sorry for the inconvenience to you.
Best regards,
Christine. Re: IW612 bluetooth crash after a few days Hi, @martinetd
Thanks for your reply.
Sure, no ETA is ok, thanks for your honest and take your time.
Then we will put it in hold status and wait for your feedback.
Best regards,
Christine.
Re: IW612 bluetooth crash after a few days Hi, @martinetd
I prefer to leave this message to you to let you know that I am already back to office.
So if you already have reproduce the issue or received logs from your customer, please do not hesitate to let me know.
If still not yet, please also feel free and do not feel that I am pushing you, just take your time.
We will be always happy to support you at any time!
Best regards,
Christine. Re: IW612 bluetooth crash after a few days Hi, @martinetd
Thanks for providing the useful info.
Sure, we will just wait for the btmon logs and related dump.
BR,
Christine. Re: IW612 bluetooth crash after a few days Thank you for keeping me updated. I've just heard back from our customer; they agreed to provide a trace and I'll send it here once available but until then can confirm a few things: - wifi is not used (our OS normally triggers a scan every few minutes but this is disabled according to customer, so it should not be used at all) - the crash happens when connecting to a single device or multiple devices, the connection is in bluetooth classic SPP/RFCOMM mode, no active scan is done once connected. There is a ping every 5 seconds and more data every 60 seconds (will confirm exact size when we get a trace). I'll update here again with btmon and associated coredump/dmesg once available. Thanks Re: IW612 bluetooth crash after a few days hi @Christine_Li our customer could reproduce with traces enabled, I'm attaching you traces: - btmon_stripped.2 contains btmon traces at the moment of the crash; the other two files contain the previous 10 minutes of data to get an idea of messages sent. Unfortunately the transmitted data contained sensitive information for our customer, so I've rewritten ascii data as 'x' in EVENT, ACL TX, ACL RX and CTRL_EVENT packets... I've checked the file is readable/sensible with btmon -r but if I messed something up please let me know; I can also probably get permission to share the original traces privately if needed. - dmesg.log includes dmesg up to crash (the btmon concerns the second occurence) - fw_devcoredump.bin was taken after the second crash, but unfortunately I'm not sure if the mechanism works properly to update the dump when crash happens again... I'm sorry if the data doesn't match but at least hopefully it'll be a sample point. Please ask if I need to request our customer reproduces again. Thanks Re: IW612 bluetooth crash after a few days hi @Christine_Li Have you had a chance to look at the traces I provided 2 weeks ago? Thanks Re: IW612 bluetooth crash after a few days Hi, @martinetd
Sorry for my delay reply. Our cases system did not sync your updates successfully from the community.
Let me check it now and will reply to you ASAP.
At the same time, I will reopen the related case in our case system so that we can track your updates in time and avoid such kind of delay replying scenarios because of our system.
BR,
Christine. Re: IW612 bluetooth crash after a few days Hi, @martinetd
I already provided the logs to our internal expert team to decode the fw dump.
Once have any updates, I will let you know.
BR,
Christine. Re: IW612 bluetooth crash after a few days Hi, @martinetd
We have analyzed the logs you provided and our findings are below.
From the dmesg log:
At 17,904 s and 17,915 s (about 5 h of uptime), two hci0: command tx timeout messages appear (failure 1).
From 17,936 s to 17,961 s, Start FW dump and FW dump complete appear. The firmware nxp/uartspi_n61x_v1.bin.se is then reloaded.
At 55,551 s and 55,562 s (about 10.4 h after the reload), the same two command tx timeout messages appear (failure 2).
From 55,567 s to 55,592 s, the same FW dump and firmware reload sequence repeats.
From the HCI log(btmon_stripped.2)
HCI#227 and #228: the last events from the controller. They are two Mode Change events (sniff mode, 50 ms interval) for the two connection handles, 0x0001 and 0x0002.
HCI#230: the host sends HCI_Exit_Sniff_Mode for handle 0x0002. The controller never responds with the complete event.
HCI#231: command tx timeout after 2 s.
HCI#234: the host sends HCI_Exit_Sniff_Mode for handle 0x0001. The controller again does not respond.
HCI#235: command tx timeout after 2 s.
HCI#237: Start FW dump. Frame #238: the controller sends an HCI Hardware Error event (code 0xB0).
HCI#250 #251: the firmware is reloaded. HCI#252: the host sends HCI Reset and initialization completes.
From these logs, the controller stops responding to HCI commands and currently we are checking with our internal team more on this. In the meantime, please help us with these questions:
What are the exact steps to reproduce the issue locally? We prefer to see whether can reproduce on our local side.
What is the issue reproduction frequency? I only know it is very low until now. If you can provide more details, would be appreciated.
What is your exact use case, and is sniff mode required for your application? In the logs we are seeing 2 devices connected whereas you mentioned only 1 device connected. So we need to double confirm with you.
BR,
Christine. Re: IW612 bluetooth crash after a few days Thanks for the reply > What are the exact steps to reproduce the issue locally? We prefer to see whether can reproduce on our local side. I'm sorry I still haven't had try to reproduce on my end; I only have as much information as you do at this point. I actually did try to setup a test with two devices I control but I couldn't figure how to setup sniff mode from the bluez stack and ran out of time for now... As far as I can tell it should be something like what we see from btmon, that is setup a link with RFCOMM that enables sniff mode when idle, and some small messages (5-66 bytes) are exchanged regularily (I was told there should be a keepalive every 5 seconds, but I have 10 more minutes of logs and there doesn't seem to be. I see small bursts every 60s) I'm actually not familiar with how to operate sniff mode, is it something the user program is toggling (enter/exit sniff mode) manually everytime they transmit data? Or does the bluez stack automatically take care of it, and re-enters sniff mode on idle? I'll try to make time to retry in the next few days... > What is the issue reproduction frequency? I only know it is very low until now. If you can provide more details, would be appreciated. I was told "once every few days", but from the logs it looks like it happens a bit more often, that might be because they switched their setup from 1 to 2 devices. > What is your exact use case, and is sniff mode required for your application? In the logs we are seeing 2 devices connected whereas you mentioned only 1 device connected. So we need to double confirm with you. They're using sniff mode to save battery and I was explicitly told this is a hard requirement (the target device they're connecting to does not support BLE so they're using sniff mode to limit the time slots during which it has to listen to save battery) I'm told the problem happens with one or multiple devices, I didn't specify the number of devices to retry for the btmon traces. Thanks Re: IW612 bluetooth crash after a few days Hi, @martinetd
Thanks for providing the info.
Sure, if you can reproduce this issue, please also share to us the detailed steps.
And at the same time, our internal team is analyzing the firmware dump.
Once have any updates, let us keep updates each other.
BR,
Christine. Re: IW612 bluetooth crash after a few days Hi, @martinetd
Thanks for your patience.
We received one PVT FW today from our internal team, as we are not able to reproduce the issue locally, please help to check and confirm whether the issue is resolved with the shared PVT FW or not.
Firmware details:
FW Name: PVT_FW_1_combo.bin.se
MD5SUM: c9eb78febccafa4772ed6c216215362a
Note: This firmware is only for the verification purpose only and not used for any official release.
Please help to check and help to share the require FW dump, btmon logs with dmesg log in case of any further issue observed.
BR,
Christine. Re: IW612 bluetooth crash after a few days Thank you! I'll ask our customer to install PVT_FW_1_combo.bin.se as /lib/firmware/nxp/sduart_nw61x_v1.bin.se on target and see if they reproduce, if they do provide logs & more details on the reproducer. (After installing the firmware as such I have this version in dmesg: [ 8.853049] wlan: version = SDIW612---18.92.8.p52.2, -1-gc524d609-Test--MM6X18543.p18-GPL-(FP92) )
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