[Tinkerphones] [Gta04-owner] A short story about some GTA04 repairs

Andreas Kemnade andreas at kemnade.info
Mon Apr 22 15:06:49 CEST 2019

Hi Nikolaus,

On Fri, 19 Apr 2019 08:06:29 +0200
H. Nikolaus Schaller <hns at goldelico.com> wrote:

> The first board did not boot and I was not able to make it boot by recovery
> µSD cards. It did not even show the magic ID string on RS232 which means
> the OMAP3 Boot ROM is not running (or RS232 is broken). This needs deeper
> analysis and looked to be unrepairable.
If usb socket is ok, looking for the bootrom on usb might also be a
check to quickly classify the board better.

> The second one did show the ID, but also did not want to boot. Therefore,
> I took a recovery µSD (makesd gta04 / makesd gta04a5) and with that one I
> could boot a little, but with problems. Therefore, I did break into the U-Boot
> console and did erase the MLO and NAND environment:
> 	nand erase 0 500000
Ok, I should really create some letux-rescue.deb (for host side) to fix
those problems via usb. I have most of the parts for it. Just need a
step-by-step confirmation thing. so you press return for every step
taken. Should keep one's nerves.


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