[Gta04-owner] Progress GTA04 and Letux OS

H. Nikolaus Schaller hns at goldelico.com
Fri Dec 29 21:45:05 CET 2017

> Am 28.12.2017 um 19:21 schrieb Neil Jerram <neil at ossau.homelinux.net>:
> Hi Nikolaus,
> Thanks for the detailed instructions here.  I think they may have worked for me, but am not sure - please see more inline below...
> On 19/12/17 19:40, H. Nikolaus Schaller wrote:
>> Hi,
>>> Am 19.12.2017 um 18:51 schrieb Neil Jerram <neil at ossau.homelinux.net>:
>>> On 19/12/17 09:57, H. Nikolaus Schaller wrote:
>>>> What you should do: update your U-Boot in NAND.
>>>> To do this, use makesd gta04 / makesd gta04a5 to format
>>>> a "production image" SD card (dual partition). Insert
>>>> into your GTA04, press the AUX button and insert the
>>>> battery. This will flash the new U-Boot into NAND
>>>> (red screen) and from that moment on you have this new
>>>> feature in your U-Boot and can use the SD card for other
>>>> things.
>>> Please could give us a reference to more detailed instructions for doing this?  I'm sorry, it's a while now since I last worked on my GTA04, but I am very interested to get this improvement in place, so many thanks to you and Andreas.
>> Ok, let's try (I hope I did not forget anything):
>> 1. get an µSD card yo do not need otherwise with at least 2GB
>> 2. plug into some SD card reader on a Linux host
>>    a recent Debian or Ubuntu is recommended
>>    It could even be the GTA04 if you manage to connect the SD reader through OTG and set up WLAN
>>    I currently use the OMAP5432EVM with Letux-OS
>> 3. find out which device name the SD card has (usually something like /dev/sdb)
>> 4. follow instructions at http://projects.goldelico.com/p/gta04-makesd/
>> 	wget -O makesd "http://git.goldelico.com/?p=gta04-makesd.git;a=blob_plain;hb=HEAD;f=makesd"
>> 	chmod +x makesd
>> 5. run (change /dev/sdb to your SD card reader if needed) as root
>> 	DEV=/dev/sdb makesd gta04
>>    or
>> 	DEV=/dev/sdb makesd gta04a5
>> 6. Insert µSD into your GTA04
>> 7. press the AUX button and keep pressed
>> 8. insert the battery (well, it should have been charged a little before)
> OK, so I did up to here, but I think I might not have charged my GTA04 enough first.  I believe I did see a red screen; but shortly later I think the phone ran out of power and died; certainly it did not get as far as showing the LXDE desktop.
> Since then, I have left the phone plugged in (by a USB cable from my laptop) for a long time, with the same SD card in place.  It has booted to the LXDE desktop, and my SSHing in I can see that it now has a lot of charge:
> root at letux:~# cat /sys/class/power_supply/bq27000-battery/uevent
> POWER_SUPPLY_NAME=bq27000-battery
> Now, if I do the following procedure ...
> - 'poweroff' (via SSH)
> - remove USB cable
> - remove battery
> - keep AUX button held down
> - replace battery
> ... I do not see any red screen.  Instead I see the partition order choice screen (with a blue/green pastoral background), and if I select the first button, the phone boots to LXDE.
> Does the absence of a red screen mean that the flashing has previously succeeded?

Yes, the flasher code checks if it is already the right version.

> Many thanks! - Neil
>> 9. GTA04 should boot and the screen should turn red after some seconds
>> 10. take out battery and install your old µSD card (if you had one)
>> 11. boot as usual
>> 12. wipe out the µSD for reflashing if you do not want to store it
>> If anything fails, please cry for help :)
>> BR and good luck,
>> Nikolaus

More information about the Gta04-owner mailing list