OAK Restarting - FW v1.0.5

[exeng]

saperlot, Just saw this after responding on the other thread. So I see it's repeatable. Still looks like a different error but the underlying problem may be related.

As I said, big guns may be looking at my issue soon. At least that's the hope.

[PeterF]

As much as I'd like to be I'm not big gun, but... 

With respect to the "No user rom found" message, that is consistent with provisioning a new Oak, or following the OakRestore process. It's just it's way to saying that there is no user program, which is the case after a wipe. You shouldn't see message when going into safe/config mode on a Oak that has been programmed with a sketch/user program (rom).

[asantos]

Hi,

Today I Could find some time to flash the Oak again.
I have flashed it, everything seemed to be Ok. Then I have power Cycled the Oak but it wont go into safe mode (Pin1+GND) neither does the led blink.
Only the power led is on...

Code: [Select]

esptool --baud 115200 --port COM4 write_flash -fs 32m 0x1000 blank.bin 0x2000 firmware_v1.bin 0x101000 blank.bin 0x102000 blank.bin 0x202000 blank.bin
Connecting...
Erasing flash...
Wrote 4096 bytes at 0x00001000 in 0.4 seconds (74.8 kbit/s)...
Erasing flash...
Wrote 778240 bytes at 0x00002000 in 85.1 seconds (73.1 kbit/s)...
Erasing flash...
Wrote 4096 bytes at 0x00101000 in 0.4 seconds (74.8 kbit/s)...
Erasing flash...
Wrote 4096 bytes at 0x00102000 in 0.4 seconds (74.8 kbit/s)...
Erasing flash...
Wrote 4096 bytes at 0x00202000 in 0.4 seconds (75.0 kbit/s)...

Leaving...
Am I doing anything wrong? Or is my Oak really dead?

[asantos]

Hi,

My OAK is still dead.
Anyone has any suggestion on how to recover it?

Thanks

[exeng]

Just curious... Did you try a Factory Restore first as described here?: https://github.com/digistump/OakRestore

I noticed that the sequence shown in your post is consistent with a forced update first update without using OTA. Just wondering if the Factory Restore would have helped.

That said, I have brought back and Oak that had flash erased but only with the help of kh who posts here. It was a long and tedious process and I don't pretend to understand all of the steps nor the Oak memory map. But one thing for sure, make sure you have saved your device ID somewhere. You may need it if it requires that level of restore.

Also, be sure that you have a quality power source and cable when doing these serial based flash updates.

[asantos]

Hi,

I have ordered a new CP2102 USB-TTL. When it arrives I will try again.
After that I will try to repeat the all process again.

Thanks for your help