Desperado !, need help to downgrade to WM6 from WM6.5 - Treo Forum

najo9000 · 07-01-2009, 07:54 AM

Hi All, I`m a newbie on my treo, 3 days ago I bought my treo 750 V with official WM6 Installed, today I`ve tried to upgrade to WM6.5, it works well, but I dont like the rom since it has some lacks for me.

This afternoon tried to downgrade, and I`m just download the CHEEIMG.NBH to rollback to WM6 ROM, because the official link from palm now is invalid.

but when I put all the files I got (CHEEIMG.nbh) to my fat32 format Mini SD, I have a problem when loading that ROM, when I push the Media Button + reset button in same time, the ROM wont load, the output was only Tri-color screen & display some info SPL xxx & SERIAL in bottom of the screen. I have tried many times to load but it wont work.

is there any problem with my Step ?, or anybody still have official Treo 750 WM6 Updater ?.

PLS HELP Brother.

thanks

TazUk · 07-01-2009, 08:02 AM

The button you need to press is the PTT button, i.e. the one below the volume up/down buttons.

The mini-SD card should have just the CHEEIMG.nbh file on it, no other files/directories.

eclair · 07-01-2009, 09:25 AM

I am going to keep my fingers crossed on this one. Najo, please post back with results. Best of luck.

Binthe920 · 07-26-2009, 07:48 AM

Sorry for the useless post, but I just inherited a 750 that didn't get updated when it was available, and I know to PM cyfer33, but can't untill I've made some posts. So here is one

jfa02 · 07-26-2009, 12:48 PM

If you want to update to 6.0 the AT update is still available at mytreo.net - the world's number one treo resource in the downloads section. If you need an unlocked rom your best bet is to try the 750 forum at xda-developers. The update is "do at your own peril" Follow the instruction very carefuly.

Binthe920 · 07-28-2009, 11:39 AM

Thanks jfa02, I have a cingular branded phone that has been unlocked so I'm assuming I need the unbranded update?

jfa02 · 07-28-2009, 01:49 PM

No you should use the ATT update it will not relock your phone to ATT It may put the ATT cr++ware on your phone but unless you got a custom rom it probably already has all that "stuff" on it already.

Binthe920 · 07-28-2009, 11:41 PM

Well, I'm not sure about the ROM. My father got it off eBay over a year ago. It does have the Cingular splash when turning the phone on and off, but doesn't seem to have any extra Cingular specific software. Anyway, I checked mytreo.net, but they don't have anything for the 750 in the software section?

Binthe920 · 07-28-2009, 11:44 PM

Sorry, I did find the update, but it is the older 2.25, shouldn't I try to get the newer version? It also says not to use it if At&t isn't my carrier?

jfa02 · 07-29-2009, 06:51 AM

That rom 2.25 is THE only official update for an att/cingular branded phone. If you want another rom you probably need to look at xda-developers and find the treo 750 forum and you should be able to find an unbranded unlocked windows mobile 6 rom to get the update on your device. The instructions to use it should be in the thread as wel. We dont guarantee anything about the process. You might also look in the everything treo forum in their 750 threads you may be able to find update there somewher or a url reference to it . Same caveat as with xda developers.com your call to do it or not its your device and make no guarantees and we are noy liable if it does not go well. The adavantage of the at rom is that somewhere theres a recovery program if it messes up in the process and stuicks you in lala land.

07-01-2009, 07:54 AM	#1 (permalink)
najo9000 I made my first post! Join Date: Jul 2009 My Treo: Treo 750v My Carrier: Vodaphone My OS: XP Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts	Desperado !, need help to downgrade to WM6 from WM6.5 Hi All, I`m a newbie on my treo, 3 days ago I bought my treo 750 V with official WM6 Installed, today I`ve tried to upgrade to WM6.5, it works well, but I dont like the rom since it has some lacks for me. This afternoon tried to downgrade, and I`m just download the CHEEIMG.NBH to rollback to WM6 ROM, because the official link from palm now is invalid. but when I put all the files I got (CHEEIMG.nbh) to my fat32 format Mini SD, I have a problem when loading that ROM, when I push the Media Button + reset button in same time, the ROM wont load, the output was only Tri-color screen & display some info SPL xxx & SERIAL in bottom of the screen. I have tried many times to load but it wont work. is there any problem with my Step ?, or anybody still have official Treo 750 WM6 Updater ?. PLS HELP Brother. thanks

07-01-2009, 08:02 AM	#2 (permalink)
TazUk Mostly harmless Join Date: Aug 2006 Location: Kent, UK My Treo: Treo Pro My Carrier: Vodaphone My OS: XP Posts: 4,528 Thanks: 255 Thanked 650 Times in 493 Posts	The button you need to press is the PTT button, i.e. the one below the volume up/down buttons. The mini-SD card should have just the CHEEIMG.nbh file on it, no other files/directories. __________________ Treo 180 > Treo 270 > Treo 650 > Treo 750v > Treo Pro "Going to church no more makes you a christian than sleeping in your garage makes you a car." *Garrison Keillor*

07-26-2009, 07:48 AM	#4 (permalink)
Binthe920 A Few Questions.... Join Date: Jul 2009 My Treo: Treo 750 My Carrier: Other My OS: XP Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts	trying to get WM6 myself Sorry for the useless post, but I just inherited a 750 that didn't get updated when it was available, and I know to PM cyfer33, but can't untill I've made some posts. So here is one

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07-01-2009, 09:25 AM	#3 (permalink)
eclair Senior Treonaut Join Date: Jun 2007 Location: USA My Treo: Treo Pro My Carrier: Sprint My OS: Vista Posts: 1,086 Thanks: 216 Thanked 216 Times in 145 Posts	I am going to keep my fingers crossed on this one. Najo, please post back with results. Best of luck.

07-26-2009, 12:48 PM	#5 (permalink)
jfa02 Moderator Join Date: Jun 2007 Location: Arkansas My Treo: Other Smartphone My Carrier: Cingular/AT&T My OS: XP Posts: 5,849 Thanks: 2,052 Thanked 375 Times in 348 Posts	If you want to update to 6.0 the AT update is still available at mytreo.net - the world's number one treo resource in the downloads section. If you need an unlocked rom your best bet is to try the 750 forum at xda-developers. The update is "do at your own peril" Follow the instruction very carefuly.

07-28-2009, 11:39 AM	#6 (permalink)
Binthe920 A Few Questions.... Join Date: Jul 2009 My Treo: Treo 750 My Carrier: Other My OS: XP Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts	Thanks jfa02, I have a cingular branded phone that has been unlocked so I'm assuming I need the unbranded update?

07-28-2009, 01:49 PM	#7 (permalink)
jfa02 Moderator Join Date: Jun 2007 Location: Arkansas My Treo: Other Smartphone My Carrier: Cingular/AT&T My OS: XP Posts: 5,849 Thanks: 2,052 Thanked 375 Times in 348 Posts	No you should use the ATT update it will not relock your phone to ATT It may put the ATT cr++ware on your phone but unless you got a custom rom it probably already has all that "stuff" on it already.

07-28-2009, 11:41 PM	#8 (permalink)
Binthe920 A Few Questions.... Join Date: Jul 2009 My Treo: Treo 750 My Carrier: Other My OS: XP Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts	Well, I'm not sure about the ROM. My father got it off eBay over a year ago. It does have the Cingular splash when turning the phone on and off, but doesn't seem to have any extra Cingular specific software. Anyway, I checked mytreo.net, but they don't have anything for the 750 in the software section?

07-28-2009, 11:44 PM	#9 (permalink)
Binthe920 A Few Questions.... Join Date: Jul 2009 My Treo: Treo 750 My Carrier: Other My OS: XP Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts	Sorry, I did find the update, but it is the older 2.25, shouldn't I try to get the newer version? It also says not to use it if At&t isn't my carrier?

07-29-2009, 06:51 AM	#10 (permalink)
jfa02 Moderator Join Date: Jun 2007 Location: Arkansas My Treo: Other Smartphone My Carrier: Cingular/AT&T My OS: XP Posts: 5,849 Thanks: 2,052 Thanked 375 Times in 348 Posts	That rom 2.25 is THE only official update for an att/cingular branded phone. If you want another rom you probably need to look at xda-developers and find the treo 750 forum and you should be able to find an unbranded unlocked windows mobile 6 rom to get the update on your device. The instructions to use it should be in the thread as wel. We dont guarantee anything about the process. You might also look in the everything treo forum in their 750 threads you may be able to find update there somewher or a url reference to it . Same caveat as with xda developers.com your call to do it or not its your device and make no guarantees and we are noy liable if it does not go well. The adavantage of the at rom is that somewhere theres a recovery program if it messes up in the process and stuicks you in lala land.