Issue: Device stuck/bricked after firmware upgrade.
Setup: RAK7201 V2.00
Server: Non relevant
Details:
After an upgrade of the device made with the RAK Device Firmware Upgrade Tool v1.4, it’s not booting anymore and stay with the button 4 in light blue.
I tried to :
Reboot with long press button 1
connecting with a terminal and send at+get_config=device:boot (no answer)
remove the battery cable during 10h
re launch the upgrade process (even if the button 1 is not available)
Do you have any solution to turn it back ? Or do i consider it as gone ?
Well, this is the proper release. Could you describe to me the exact way that you flashed it?
Have you stooped/ canceled the process of flashing with the DFU tool?
Hi Nikola,
Looks like I am in the same boat with a bricked RAK7201.
I have a JLink to reflash the firmware if that’s an option.
Thank you for any advice!
Hi @mikelebon,
I am sorry for the late reply. Could you describe to me what happened to the button and how did the button ended bricked? Also are you sure that the device is bricked?
Hi,
I’ve somewhat the same issue, at first I used the RAK serial tool to connect the button to a RAK 7268 gateway but the device was not responding to any commands. It only worked when I would push a button. I then tried to update the device following the tutorial with the RAK7201_V2.0.6_APP bin file, everything seemed fine but after a succesful update the device doesn’t respond to anything and the blue led from the button 4 is lighted up faintly. It’s reconnized by the computer but won’t respond to any command nor button press. I tried to remove the battery from the device but nothing, what can I do ?
Is your device RAK7201 or RAK7201V2?
Based on what happened, the firmware that you have flashed is actually for V2 and I suppose that the button is RAK7201(not V2).
If so use the following guide to reflash it (the guide is for 7201 and not 7201V2): Firmware Upgrade Guide | RAKwireless Documentation Center
I would like to I can’t put it in configuration mode, whatever I do. I tried without and I get this
As I said, when I power it up the blue led from the button 4 is lighted up faintly, when using the micro usb, the red led from the button 2 is lighted up strongly, supposedly indicating a charge.
Also with wistool, the device doesn’t respond to AT command.
The button is bricked from the wrong firmware uploaded. You can fix it using Jlink. The problem now is that you need to enter the device into boot mode the V2 firmware doesn’t implement holding button 1 for configuration mode. If you are based in Europe you can send it to me and I can reflash it for you and send it back to you, but we can not replace the device as you bricked it yourself.