hp rw6828 wm6 (odd conditions) -> wm5

[elus]

Hi guys,

Hi,
I'm a hp rw6828 user and is very much enthusiast to try out those wm6 roms made by those experts. However, i did a mistake while trying to flash.

I tried flashing with a rom from wantat but i forgotten to delete the EBOOT.nb0 before i clicked "upgrade". Then the program stopped at 6% for a long time and didnt move. I disconnect the cables and tried to turn the device on.

THe device can go into the wm6 and the start button can be use but the screen is "moved" to the right side and other function is not working.

After that, i did a hard reset and the the os seem to work like normal. However, when i tried to go into bootloader mode by pressing both "_" and soft reset. That didnt work. I tried another way by taking out the batt, leave it for a 10mins, press both "_" and soft reset, put in batt, release soft reset then "_" keys. That didn't work either.

But, just lately, i've tried taking out batt, holding the camera key and softreset, place back batt, release soft reset n camera button. This method works and i get what it seems to be an atom bootloader?

i get a black background with "MN1 Bootloader Mar 29 2006 13;52;14 copyright..... 1) debug module through UART 2) jump to DM Enter your selection.

I've searched the forums and found few ways to downgrade back to wm5 but those aren't the same conditions with what im facing. Can someone recommend how can i downgrade back to wm5 with the conditions that im facing? All you help is much appreciated. THank you.

[wantat]

You are lucky , at lease your device now become atom. My was totally cannot on power and just vibrate. Till I have to sent it back to HP SC and change the main board . Can you understand chinese , if yes than I have a solution you may try . Else you have to wait . I just download a program and doing some testing , the program is in chinese language .

[elus]

Thx for you reply. I guess u can say that. I'm from msia but cant read chinese.
Is it possible to solve the problem by sending back to hp using warranty claim? I think i still have warranty left but its ending very soon. One more week i think.

[wantat]

Thx for you reply. I guess u can say that. I'm from msia but cant read chinese.
Is it possible to solve the problem by sending back to hp using warranty claim? I think i still have warranty left but its ending very soon. One more week i think.

I don't think you still can claim under warranty unless you can make your phone total can't on and access to windows mobile. Last time I sent it back they charge me RM 385 to change the main board . I did talk to their technical personal , it seen like they don't know what is bootloader and flash it back to original rom . What they do was just change the main board with preloaded program .

Good luck

[wantat]

If you think that you can claim you warranty , than you just go a head . If not , may be you can access my thread "HP6828 WM6" , download any one of the rom that I post , follow the instruction accept downgrade bootloader . Enter your phone in bootloader mode . If you can start the process , than it will flash a new hp bootloader into your phone .

Against . Good luck

Cheers
I'm from malaysia also.

[elus]

Ok. I'll try your method to restore the bootloader. Thx for the fast reply. I'll keep u update with the progress. Thx again.

[nhocbanme]

Ok. I'll try your method to restore the bootloader. Thx for the fast reply. I'll keep u update with the progress. Thx again.

You've flash ATOM Bootloader, there are many ways to restore to HP Bootloader ... don't worry !!!

[wantat]

You've flash ATOM Bootloader, there are many ways to restore to HP Bootloader ... don't worry !!!

Can share the information how to restore back the HP original bootloader ? And the procedure . Thanks

[nhocbanme]

First you must have HP bootloader file (Eboot.nb0) 1.01 or 1.05 are OK.
- Use DRUU to restore Bootloader : replace ATOM bootloader file with HP bootloader file
- Use miniSD to restore Bootloader : copy Eboot.nb0 to miniSD card, go to bootloader ... wait 1' it will auto hard reset.
After flash successfull remmember remove Eboot.nb0 from miniSD.
- Reflashing Bootloader using JTAG. (Use only when can't use two above menthods)

HP Bootloader 1.01 : http://rapidshare.com/files/82853862/HP_BL1.0.1.rar
HP Bootloader 1.05 : http://rapidshare.com/files/82853924/HP_BL1.0.5.rar

[elus]

nhocbanme could you please specify which specfic DRUU should be use for your method? Thank you.

[nhocbanme]

You should use DRUU of Chartreux, replace Eboot.nb0 and choose OS and Eboot
Remember copy a HP68xx ROM (diskimage_Ver.nb0) to C:\Windows\Temp with DRUU of Chartreux then start...

[elus]

nhocbanme, you explanation seems vague to me. Probably cause im still new. Could you please give a clearer instructions? Thank you

[nhocbanme]

nhocbanme, you explanation seems vague to me. Probably cause im still new. Could you please give a clearer instructions? Thank you

-You must extract RUU in C:\Windows\Temp (no sub folder) then replace Eboot.nb0 with Hp bootloader 1.01/1.05
-Copy a diskimage_Ver.nb0 (any ROM WM6 for HP 68xx) to C:\Windows\Temp
-Run the DRUU program and choose OS and Eboot and start.

Goodluck !!!

[elus]

It worked! Thx a lot nhocbanme and wantat. The methods restore the atom bootloader to hp bootloader. The DSUU by chartreux is a good tool.

Now, i would like to put this solution up into the wiki. How may i do so? Thank you.

[williamSun]

hi, im william from M'sia. i like to know how you recover your previous installed AtomROm back to WM5.
can u provide some step to step detail
if possible upload some files can let me flash from memory card in the bootloader screen
ur reply are highly appreciated
thx ~~

[nhocbanme]

hi, im william from M'sia. i like to know how you recover your previous installed AtomROm back to WM5.
can u provide some step to step detail
if possible upload some files can let me flash from memory card in the bootloader screen
ur reply are highly appreciated
thx ~~

OK, please read my topic, I'll post a WM5 ROM flash via miniSD :)

[williamSun]

im facing another problem again...
this time i changed the file extension EBOOT0502_MNT_01.01.03.nbf to EBOOT0502_MNT_01.01.03.nb0
(file from HP official WM5 SP34074, inside the installed folder )
and copy to memory card and put in 6828 then started to go bootloader screen
few minutes later my screen goes blank, and i tried with the revive methods
which is

-press the 2 softkey " - " and reset button
-put in the battery ,
-release reset, then release softkey

but didt work out!!!!no repsponse at all..tried many times..possible dead ad???

plz help me abit ..big troblem!

[elus]

I dont think i can help u much here as im still new. From the looks of your problem, i guess u forgotten to cut the first 12bits (or something like that) of your bootloader when u use it to flash via mini sd. Maybe you can try the JTAG method mentioned in the atom wiki to restore your bootloader. Good luck.

[ericboy]

The same exact thing happened to me yesterday..I was already about to sell my ipaq as a dead unit and i came upon this thread and after following the steps it did made ipaq alive again..

thank you very much guys,i hope you continue to help more people..

god bless and best of luck to you

more power xda-dev!:)