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Автор: thananan27 9.7.2008, 17:09

My O2 xda stealth it dead no boot after up rom.
please help me xda stealth it dead no boot.[size="3"][/size]

Автор: BigMike 9.7.2008, 21:16

Автор: BigMike 9.7.2008, 21:19

First of all - disassemble the device and make some big photos of its mainboard.

Автор: thananan27 10.7.2008, 3:35

please help me xda stealth it dead no boot. i have picture mainboard in side .please mail contact me. Email: thananan@vtcthai.com

Автор: linbin 10.7.2008, 5:52

O2 Xda Stealth

Автор: linbin 10.7.2008, 5:56

O2 Xda Stealth

Автор: thananan27 10.7.2008, 16:39

O2 Stealth Back

Автор: thananan27 10.7.2008, 16:41

O2 Stealth Front

Автор: thananan27 10.7.2008, 17:48

Stealth

Автор: BigMike 10.7.2008, 20:33

Look at these 2 parallel groups of 5 big round pins near the SIM connector.
One of them is JTAG pins.
So, you need to make JTAG cable and test them with Jflash_mm
Scheme of Jtag cable and JFlash_mm you can get http://forum.pda2u.ru/forum/topic286.html (http://translate.google.ru/translate?hl=en&sl=ru&u=http://forum.pda2u.ru/forum/topic286.html).

Important: the length of JTAG cable must be less then 25-30cm.
Important 2: the order of JTAG pins can be various on your device - you need to check all the combinations for every of these 2 groups of 5 pins.
Important 3: You'll need to replace the file eboot.nb0 with the bootloader of your Stealth (get it from the ROM for Stealth)

Are you ready to make this job by yourself?

Автор: aidarbest 10.7.2008, 21:30

Если удастся восстановить xda stealth, то точно так же можно будет восстановить gsmart i120, i128. Потому что xda stealth разрабатывался в Gigabyte, и они построены на одной платформе. Мне даже удавалось прошивать i120 прошивкой от stealth.
У моего gsmart i120 на контактах возле SIM connector видны следы, как-будто к ним что присоединяли (видны точки в центре). Возможно это и есть контакты JTAG.

Автор: thananan27 11.7.2008, 4:06

Please suggest for detail for JTAG in O2 Stealth. Please write detail on pictrue.

Автор: SAXON13 11.7.2008, 13:09

Цитата(thananan27 @ 11.7.2008, 4:06)

Автор: thananan27 11.7.2008, 13:54

hey boy I'm not detial TCK , TDI , TMS , TD0

Автор: aidarbest 11.7.2008, 16:02

Таким перебором, определения контактов jtag, можно повредить системную плату?

Автор: linbin 11.7.2008, 16:18

I also need to
I now have the Xda stealth boot the boot screen, not into the system, can do nothing, there are about two months, has always been this way

Автор: BigMike 11.7.2008, 17:25

Автор: thananan27 11.7.2008, 17:41

Please suggest for detail for JTAG in O2 Stealth. Please write detail on pictrue.

Автор: aidarbest 11.7.2008, 18:13

Автор: linbin 11.7.2008, 21:04

Thank you mike, my phone access to the factory model (test mode), can not enter bootloader, start-up has been set in the first frame, the last measurement in test mode when the flash Length = 20000000 Checksum = db92a1cd, specific show is all normal, Is the final test results fail, but I am a friend's phone is a normal flash when the test results also fail, be sure this is a normal result, when I connect jatg line, then when God measured flash data into a Length = ffffffff Checksum = ffffffff, about 20 seconds, the phone on a Dead show Abort Exception: CPSR = 80000097-N.z.c.v.q.z.f.t.ABT (17)RO = 17008385.R1 = 00057bdc.R2 = 00000002.R3 = a010f6ce…………> test results can not be displayed on a Dead, but always the case, I do not know where the mistakes, and now the phone However, it is able to boot the old way, will be in the first frame, nothing can do can tell me what had happened? » There will probably JATG point where I would like to thank

Автор: BigMike 11.7.2008, 21:45

Автор: thananan27 12.7.2008, 2:37

Цитата(linbin @ 12.7.2008, 1:04)

Автор: linbin 12.7.2008, 22:30

In fact, I do not know where to contact JATG, my intuition tells me he should be ranked in the two contact one of the big four, the CPU is PAX272 and ATOM, the method should be the same, there are experts who can help please I extracted the XDA STEALTH BOOTLOARD guidance document, I can not find on the web extraction method

Автор: thananan27 15.7.2008, 8:33

Dear Sir,
I test it JTAG it can't work for O2 Stealth .
O2 stealth it OEM from Gigabyte. I ask MWG & Gigabyte Commumunication his Reply to me it don't restore O2 stealth. Test point it can't work and suggest me sent to repair service. I think change new mainboard price 200$.

Автор: BigMike 15.7.2008, 9:03

Such an answer from O2 doesn't wonder.
Manufacturers usually hide this information. If you'll write to O2 about JTAG for Atom Exec - they'll give you the same answer. But the technology of JTAG flashing Atom Exec exists - it's published on our forum.
Sorry - I can't help you with JTAG flashing by myself, because I have no experience in it. I'll try to call our experienced reanimators to visit this theme, but I can't promise you anything.

Автор: linbin 16.7.2008, 10:19

Recently, I had been trying to find out the definition of JATG interface, in accordance with the restoration of O2 ATOM to do the same LTP a jack of O2 STEALTH done a lot of testing, I found several problems, the SIM card in the first row of the left side of the contact , The top of the points that he used to feel very strange, when I received the phone when the TCK or TMS will become the red light, when I received TDO or TDI, the phone will become light yellow, and then when JATG TDI test is the result ifthe 00 billion Is wrong in the end this should be 11111111111 What should be the contact point, there are tests to boot? »

Автор: linbin 28.7.2008, 18:52

Help me