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2D42 Firmware update failed

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 Author| Post time 2019-3-6 22:50:01 | Show the author posts only
Thank you very much! I followed your instructions precisely but unfortunately I cannot connect to the device. I used USB to TTL module with no luck.
Your help is much appreciated. Have a great day!

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Post time 2019-3-6 15:09:11 | Show the author posts only



If you can use TTL serial port tool, please refer to the attachment to program arm1 and arm2:
https://fil.email/695SztWD

This link is valid for only seven days. Please download it as soon as possible.

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 Author| Post time 2019-3-6 02:02:51 | Show the author posts only
+79003631279 replied at 2019-3-6 01:41
Hello. When flashing it is important to charge the batteries and use the laptop then there will be l ...

Thank you for the message, could you please send info in regards to flashing through the programmer directly. It is my only choice since the F1/Power combination does not work. Also the PC does not recognize the device. Thank You!

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Post time 2019-3-6 01:41:29 | Show the author posts only
Hello. When flashing it is important to charge the batteries and use the laptop then there will be less problems. Try updating again by turning on boot mode by holding down the F1 key and pressing the power button. If it does not help, then just flashing through the programmer directly. I didn’t write in more detail because if not skillful actions can damage the device, it is used for programming STM ST-Link Utility
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