topic Re: Kinetis Device is locked in Kinetis Microcontrollers

Kinetis Device is locked

durgeshk — Fri, 15 Sep 2017 12:16:40 GMT

Hi,

I am using MKL16Z256VLH4 controller, when trying to download code ,getting message " Kinetis device is locked ! Do you want to unlock it ? Mass erase will be executed ! ". see below

Clicking OK or Cancel displays message: " Cannot access memory".

I have tried it in keil with ULINK-ME

how do i unlock please help.

Re: Kinetis Device is locked

Hui_Ma — Mon, 18 Sep 2017 04:35:40 GMT

Hi,

Do you have a Segger J-Link tool on hand?

If yes, I would recommend to download and use Segger J-Link Commander tool to unlock KL16 chip.

Wish it helps.

Have a great day,
Ma Hui

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Re: Kinetis Device is locked

durgeshk — Sat, 23 Sep 2017 09:12:35 GMT

Hi Hui_Ma

Thank you for reply

I don't have J-Link tool, I'm using Ulink2/ME..how to unlock with this tool

Regards

Durgesh

Re: Kinetis Device is locked

Hui_Ma — Mon, 25 Sep 2017 02:20:59 GMT

Hi Durgesh,

Please check below link if that could help to fix the issue:

ULINK: UNLOCKING FREESCALE KINETIS MEMORY WITH ULINK

Wish it help.

Have a great day,
Ma Hui

Re: Kinetis Device is locked

andrewbarningha — Wed, 07 Aug 2019 08:18:11 GMT

Perfect - I wish all problems had answers like this.