Is it dangerous to downgrade from NFSFAN GPS rom to original Bell Rom? - Touch CDMA Windows Mobile ROM Development

I've read on the other site that its dangerous
http://forum.ppcgeeks.com/showthread.php?t=26082
I have NFSFAN Latest rom with GPS, I want to go back to the original bell rom because bell world said they can't change my cell phone number with the custom rom.
Thanks

I have done it so many times......nothing hard nor dangerous.
Just use the latest bell firmware (with the GPS) and flash it.....
xeongx said:
I've read on the other site that its dangerous
http://forum.ppcgeeks.com/showthread.php?t=26082
I have NFSFAN Latest rom with GPS, I want to go back to the original bell rom because bell world said they can't change my cell phone number with the custom rom.
Thanks
Click to expand...
Click to collapse

Hmm sounds kinda weird, I don't see why the need the stock bell ROM to change your number. Just re flash it with the bell ROM, go get it changed, then flash your custom ROM back. Just don't try to return your phone until you have downgraded the bootloader and flashed the stock bell ROM, but in your situation it does not sound like there is a need to downgrade.

just make sure that the Official Bell Rom has the 3.xx Radio or more,, and you will be fine.

Well I flashed to NFSFAN's ROM hand had nothing but trouble after that. Now, to be honest I couldn't say if it was the ROM or the flashing that caused the problem, as I unlocked as I was supposed to first, but I could not reflash back to OEM after that using active sync, I had to do it from the storage card. And now after trying it yet once again, my phone shows No Service...
So I would say that your mileage may definitely vary... I'd say if you're able to downgrade to the Bell 3.09.666 ROM from activesync you should be fine.
Keep us posted!

Related

Some questions related to AT&T tilt 2

I just got my tilt 2 about a month ago. I want to flash a clean rom, but here are my questions:
1. I heard that I have to unlock my phone before I flash a new rom, is that true?
2. Which rom do you guy recommend? I just need a clean rom with TouchFLO 3D or Sense.
3. How can I back up the rom I'm using now?
4. If I have to unlock my phone to flash a new rom(which I'm not willing to do it now), how can I delete all the pre-installed softwares? I looked it up in Wiki, but when I try to delete something by using CEregeditor, it always says that access denied. How to solve this problem?
Thanks a lot
you dont need to sim or security unlock your phone but you do need hardspl. if you want a clean rom with manila/tf3d/sense i would recommend eras2r's rom at http://forum.xda-developers.com/showthread.php?t=585403 . and for reverting to stock for warranty and everything else you need check out http://tilt2.blownfuze.org/
Thanks. I got another question, do I also ned to flash radio? what is that for?
radio is for wifi, gps, and cellular connections like phone and mobile data. you dont need to flash one. the stock radio that comes on the phone is one of the best stock radios i have seen. on the old touch pro, you would need to flash a new radio if you wanted to get a signal anywhere or use gps in this decade. i always flash the newest radios just cause i can but thats me, i dont like out dated software. i would wait on the radio if i where you, just to know what it all means first.

Kaiser Requirements

Hi all. I have an AT&T Tilt that's a little bit behind in software updates. It's currently on WM6 (AT&T ROM 1.57.502.2) and has a radio ROM of 1.27.12.11.
I'd like to play around with Android, but as this is my backup phone I don't have an active SIM card for it. WiFi should be fine for playing, I will get a SIM for cell data later (assuming that will work).
Anyway, I've tried installing Android a few different ways and I've encountered a number of different failures. I'm using the SD card method, formatted as FAT32. I'm starting to wonder if it's because I'm not running WM6.1 and the latest ROM. I thought the radio ROM was only in relation to actually getting cell service, but perhaps I was wrong.
Any thoughts? I'd like to avoid upgrading the WM install if possible as restoring all the data will be a bit of a bummer, but it's possible. If so, I'd like to stick to an official AT&T ROM. Should I try WM6.1 or 6.5?
Thanks for the help!
You should upgrade, there should be a newer AT&T stock rom available.
The roms linked here : http://wiki.xda-developers.com/index.php?pagename=Kaiser_ROMs are all stock and should not need HardSPL in order to use them.
I would however consider flashing at least HardSPL and getting the latest generic stock rom, since this will work with android on SD.
If you are unsure, stick with the latest AT&T stock one.
Thanks for the advice. I'd like to stick with stock on this phone.
I did get an official unlock code from AT&T. Any idea if the new ROM will undo that?
What did you mean about the hacked ROM running Android off SD card. Won't the official ROM do that too?
Thanks!
there is really no upside to keeping everything stock on it.
flash hardspl, and flash nand android. seems to work the best.

[Q] TMO GS3 : Will unlock go away if updated or installed 4.2.2 rom?

I've galaxy s3 for tmobile and it is currently on 4.1.1 T999UVDLJA.
I followed this method to unlock it and right now I am using the phone on H2OWireless (MVNO on AT&T network), everything is working fine (not tested data plan yet).
http://forum.xda-developers.com/showpost.php?p=34661189&postcount=1
Now my question is if I upgrade the OS in future to say stock from TMO 4.1.2 (when they release) or non-stock 4.2.2 rom then will my unlock go away or it is factory unlocked now?
re: Unlock
raone26 said:
I've galaxy s3 for tmobile and it is currently on 4.1.1 T999UVDLJA.
I followed this method to unlock it and right now I am using the phone on H2OWireless (MVNO on AT&T network), everything is working fine (not tested data plan yet).
http://forum.xda-developers.com/showpost.php?p=34661189&postcount=1
Now my question is if I upgrade the OS in future to say stock from TMO 4.1.2 (when they release) or non-stock 4.2.2 rom then will my unlock go away or it is factory unlocked now?
Click to expand...
Click to collapse
No, once your phone is unlocked it stays that way regardless of flashing any roms.
Flashing roms has no effect on the locked or unlocked status of the phone.
Even a OTA update has no effect on the locked or unlocked status of the phone.
Misterjunky said:
No, once your phone is unlocked it stays that way regardless of flashing any roms in the future.
Flashing roms has no effect on a phone which is unlocked or locked.
Click to expand...
Click to collapse
Are you sure? Because this is different method than entering an unlocked provider by service provider. I just want to make sure before I step out of 4.1.1. And again it's possible to move back to stock right? Is there anything like iphone where you must have SHA BLOBS to get back to a specific version? I am an iphone guy and getting first time handson android phone litterally!
I tried getting one from tmobile but since I am not a tmobile customer the refused.
re: unlocked-locked
raone26 said:
Are you sure? Because this is different method than entering an unlocked provider by service provider. I just want to make sure before I step out of 4.1.1. And again it's possible to move back to stock right? Is there anything like iphone where you must have SHA BLOBS to get back to a specific version? I am an iphone guy and getting first time handson android phone litterally!
Yes you can go back to the stock rom by Odin flashing your phone at any time.
Doing that has no effect on the phone's locked or unlocked status.
Sorry I have no idea about the iphone's BLOBS
Click to expand...
Click to collapse
4.2.2 ROM?
Misterjunky said:
Yes you can go back to the stock rom by Odin flashing your phone at any time.
Doing that has no effect on the phone's locked or unlocked status.
Click to expand...
Click to collapse
Can you help or direct me to any link on this forum which lists all custom ROMs for TMO GS3 please.
And if possible in your opinion which would be the best? (I know it's wide scope question but if you can help that would be great )
re: custom roms
raone26 said:
Can you help or direct me to any link on this forum which lists all custom ROMs for TMO GS3 please.
And if possible in your opinion which would be the best? (I know it's wide scope question but if you can help that would be great )
Click to expand...
Click to collapse
Here is a link for a lot of Tmobile custom roms. Any of the custom roms there will work with a
Tmobile S3 locked or unlocked phone or a AT&T S3 unlocked phone: http://forum.xda-developers.com/forumdisplay.php?f=1645
My personal preference for custom rom is the "Wicked v9.1" rom.
In my opinion after flashing all other custom roms for Tmobile T999 phones the "Wicked v9.1"
custom rom is clearly the best rom which is currently available for our phones.
It's not only the most trouble free & reliable custom rom but cosmetically speaking it looks like a retail commercial product.
I would recommend that you flash that first, check out all it's features and options carefully then make a nandroid backup.
Here is the link to the Wicked v9.1 custom rom: http://forum.xda-developers.com/showthread.php?t=1804260
After doing that flash a lot of the other roms which are available and check those out so you can have a better idea
as to what the differences are after doing a lot of comparing.
Good Luck!

[Q] SGH-i747M rom on SGH-i747

Hey guys.. I'm new to this forum and to flashing ROMs and all that so I need your help..
I used the search option and didn't find a clear answer to this..
I have bought about a month ago an at&t SGS3 SGH-i747 and I am not very happy with the current OS (android 4.1.1 at&t stock ROM) and I want to upgrade it to 4.1.2. After searching google a bit i found out that there IS an official 4.1.2 android from at&t for my device and wherever I go they say to go to settings, about device, software update and update my phone from there but it says that there is no update.
I have searched for a ROM on sammobile and only found a 4.0.4 ROM for my phone.
However, I found out that there is a 4.1.2 ROM for SGS3 SGH-i747M, and some people say that their ROMs will work on my device and some say they won't.
Can someone tell me, if I install a Rogers (for example) i747M ROM on my device will it work without problem? I don't want to stay with the at&t ROM because it has too many limitations on them.
I prefer not to install custom ROMs because they are all a bit unstable..
Sorry if I have bad English, tried my best..
First off an (att) rom will work with a (rogers) phone. I'm using one right now.
Secondly, if you do manage to install a (rogers) rom on your s3 it will probably be missing apn settings and you'll have rogers apps.
Lastly, through my experience with custom roms, I have found that they are far more stable then stock, if you're looking for a good custom touchwiz rom. Look at hyperdrive
ChaosG said:
Hey guys.. I'm new to this forum and to flashing ROMs and all that so I need your help..
I used the search option and didn't find a clear answer to this..
I have bought about a month ago an at&t SGS3 SGH-i747 and I am not very happy with the current OS (android 4.1.1 at&t stock ROM) and I want to upgrade it to 4.1.2. After searching google a bit i found out that there IS an official 4.1.2 android from at&t for my device and wherever I go they say to go to settings, about device, software update and update my phone from there but it says that there is no update.
I have searched for a ROM on sammobile and only found a 4.0.4 ROM for my phone.
However, I found out that there is a 4.1.2 ROM for SGS3 SGH-i747M, and some people say that their ROMs will work on my device and some say they won't.
Can someone tell me, if I install a Rogers (for example) i747M ROM on my device will it work without problem? I don't want to stay with the at&t ROM because it has too many limitations on them.
I prefer not to install custom ROMs because they are all a bit unstable..
Sorry if I have bad English, tried my best..
Click to expand...
Click to collapse
What you are describing on Sammobile are the stock firmwares that are flashed through a program called Odin. If you tried flashing a Rogers image, you could potentially brick your phone, or as the user above said, there would be a lot of issues since that is not the firmware for AT&T. Are you rooted? If you are, that is what is causing the upgrade issue, since you have to be 100% stock.
dbaler said:
First off an (att) rom will work with a (rogers) phone. I'm using one right now.
Secondly, if you do manage to install a (rogers) rom on your s3 it will probably be missing apn settings and you'll have rogers apps.
Lastly, through my experience with custom roms, I have found that they are far more stable then stock, if you're looking for a good custom touchwiz rom. Look at hyperdrive
Click to expand...
Click to collapse
Thanks for your answer. Well, if you say that custom roms are more stable than stock, I won't argue. Just some friends told me otherwise.
I'll try to find a good rom that suits me.
Btw, I don't care if ill have Rogers apps or AT&T apps, they are both useless to me. I just don't want to brick my phone.
drx895 said:
What you are describing on Sammobile are the stock firmwares that are flashed through a program called Odin. If you tried flashing a Rogers image, you could potentially brick your phone, or as the user above said, there would be a lot of issues since that is not the firmware for AT&T. Are you rooted? If you are, that is what is causing the upgrade issue, since you have to be 100% stock.
Click to expand...
Click to collapse
I didn't flash a Rogers rom because I couldn't find a clear answer that says that it will not brick my phone. I just seen some people ask about it and didn't get an answer either. I have tried to unroot and flash a stock rom from "samsung-updates.com", a 4.1.1. Its the same as the one that I already had. Still, no update available.
ChaosG said:
Thanks for your answer. Well, if you say that custom roms are more stable than stock, I won't argue. Just some friends told me otherwise.
I'll try to find a good rom that suits me.
Btw, I don't care if ill have Rogers apps or AT&T apps, they are both useless to me. I just don't want to brick my phone.
I didn't flash a Rogers rom because I couldn't find a clear answer that says that it will not brick my phone. I just seen some people ask about it and didn't get an answer either. I have tried to unroot and flash a stock rom from "samsung-updates.com", a 4.1.1. Its the same as the one that I already had. Still, no update available.
Click to expand...
Click to collapse
If you flash a ODIN package for rogers on an AT&T phone you may brick it due to bootloader and modem
if you flash a custom zip based on an AT&T rom from XDA you won't brick since they don't contain bootloader or a modem
hope this helps

[Q] HELP!!

Hello everyone i have an galaxy s3 at&t version and i was trying to install a rom and the rom said it needed a certain bootloader so i download it and flash it and now my phone won reconize my sim or network state nor imei and i need help please !!!
!!!!!
ive tried odin and try reflashing back to stock but odin failed
ImJusDatGuy said:
Hello everyone i have an galaxy s3 at&t version and i was trying to install a rom and the rom said it needed a certain bootloader so i download it and flash it and now my phone won reconize my sim or network state nor imei and i need help please !!!
!!!!!
Click to expand...
Click to collapse
Definitely more info needed.
What ROM is on your device?
What bootloader did you install?
What modem/baseband/radio is on your device?
What method did you use to try to install the bootloader?
Is your phone still showing the correct IMEI in settings or 0 ? (Compare between that shown in settings and under the battery.)
It may be as simple as updating your modem, but I/we can't tell yet.
dawgdoc said:
Definitely more info needed.
What ROM is on your device?
What bootloader did you install?
What modem/baseband/radio is on your device?
What method did you use to try to install the bootloader?
Is your phone still showing the correct IMEI in settings or 0 ? (Compare between that shown in settings and under the battery.)
It may be as simple as updating your modem, but I/we can't tell yet.
Click to expand...
Click to collapse
the rom i have at the moment is the restored verison of the rooted rom i have which is stock 4.1.1 with root
the bootloader i install is I747UCUEMJB
my phone says baseband verison is unknown
i install the bootloader through cwm
the imei is unknown also my phone number to and network and roaming says not roaming mobile network state is disconnected.
everything is messed up thanks for the quick reply man i need help.
ImJusDatGuy said:
the rom i have at the moment is the restored verison of the rooted rom i have which is stock 4.1.1 with root
the bootloader i install is I747UCUEMJB
my phone says baseband verison is unknown
i install the bootloader through cwm
the imei is unknown also my phone number to and network and roaming says not roaming mobile network state is disconnected.
everything is messed up thanks for the quick reply man i need help.
Click to expand...
Click to collapse
I'm new at this, in fact I have flashed by old Captivate several times but yet to flash my SGS3. Anyhow, I have spent many hours reading. Before doing anything I suggest, read, and read some more.
Don't flash back to 4.1.1 or 4.1.2 at this point. They will install an older bootloader than is currently on your phone. From what I have read, you narrowly escaped bricking your phone. You might want to read some of the threads regarding the 4.3 stock ROM and unbricking before making any changes in restoring your device.
You can probably fix this by flashing the modem that goes with the 4.3 series ROMs. It would also be the MJB flavor, although the MJ2 would probably work. Several of the 4.3 TouchWiz ROMs in the development forum have download links for the MJB modem. I would guess you were probably going to install one of them. I would recommend flashing the modem to see if that solves your issues before going ahead with the ROM flash.
dawgdoc said:
Definitely more info needed.
What ROM is on your device?
What bootloader did you install?
What modem/baseband/radio is on your device?
What method did you use to try to install the bootloader?
Is your phone still showing the correct IMEI in settings or 0 ? (Compare between that shown in settings and under the battery.)
It may be as simple as updating your modem, but I/we can't tell yet.
Click to expand...
Click to collapse
dawgdoc said:
I'm new at this, in fact I have flashed by old Captivate several times but yet to flash my SGS3. Anyhow, I have spent many hours reading. Before doing anything I suggest, read, and read some more.
Don't flash back to 4.1.1 or 4.1.2 at this point. They will install an older bootloader than is currently on your phone. From what I have read, you narrowly escaped bricking your phone. You might want to read some of the threads regarding the 4.3 stock ROM and unbricking before making any changes in restoring your device.
You can probably fix this by flashing the modem that goes with the 4.3 series ROMs. It would also be the MJB flavor, although the MJ2 would probably work. Several of the 4.3 TouchWiz ROMs in the development forum have download links for the MJB modem. I would guess you were probably going to install one of them. I would recommend flashing the modem to see if that solves your issues before going ahead with the ROM flash.
Click to expand...
Click to collapse
Could you provide an link by any chance please i dont want to install anything wrong and btw im on jb 4.1.1 do i need to install a 4.3 rom also ? or ?
ImJusDatGuy said:
Could you provide an link by any chance please i dont want to install anything wrong and btw im on jb 4.1.1 do i need to install a 4.3 rom also ? or ?
Click to expand...
Click to collapse
The reason I didn't put a link in the previous posts was to get you to read about what you were doing as you searched for the modem. I am offering advice on things I have yet to experience on this device and only speaking second hand. My advice is only based on what I have read not on anything I have had to correct myself.
In truth I think you just stopped too soon in the process of what you were doing earlier. You said you installed the 4.3 bootloader in preparation to installing a 4.3 or later ROM that required the up to date bootloader. You didn't mention installing the current modem/baseband. You didn't mention trying to flash whatever ROM you had been considering.
You may be able to correct your device simply by installing the 4.3 modem. HERE is the modem thread, it is in the General Forum for our device. Make sure you pick the correct one. I don't know if your device will work well on the MJB bootloader and modem with a 4.1.1 ROM, from something I seem to recall reading I suspect it will.
Take this in steps. Install the correct modem, the one that matches your bootloader. See if that corrects you sim, data, and IMEI problems. If it does correct the issues, the next step is to decide if you want to stay on the 4.1.1 ROM or change to whatever ROM you had been considering. If you decide to change, make backups first. If it doesn't fix the problem while on 4.1.1 you may want to flash the version of the official 4.3 ROM enewman17 has provided on the development thread.
Take it one step at a time. Read about what you are about to do until you understand it well, all before doing anything. Make backups sequentially as you make each corrective step.
HTH.
dawgdoc said:
The reason I didn't put a link in the previous posts was to get you to read about what you were doing as you searched for the modem. I am offering advice on things I have yet to experience on this device and only speaking second hand. My advice is only based on what I have read not on anything I have had to correct myself.
In truth I think you just stopped too soon in the process of what you were doing earlier. You said you installed the 4.3 bootloader in preparation to installing a 4.3 or later ROM that required the up to date bootloader. You didn't mention installing the current modem/baseband. You didn't mention trying to flash whatever ROM you had been considering.
You may be able to correct your device simply by installing the 4.3 modem. HERE is the modem thread, it is in the General Forum for our device. Make sure you pick the correct one. I don't know if your device will work well on the MJB bootloader and modem with a 4.1.1 ROM, from something I seem to recall reading I suspect it will.
Take this in steps. Install the correct modem, the one that matches your bootloader. See if that corrects you sim, data, and IMEI problems. If it does correct the issues, the next step is to decide if you want to stay on the 4.1.1 ROM or change to whatever ROM you had been considering. If you decide to change, make backups first. If it doesn't fix the problem while on 4.1.1 you may want to flash the version of the official 4.3 ROM enewman17 has provided on the development thread.
Take it one step at a time. Read about what you are about to do until you understand it well, all before doing anything. Make backups sequentially as you make each corrective step.
HTH.
Click to expand...
Click to collapse
i've read this one thread and ive downloaded the modem and the rom ive tried to instal was a kitkat version of quatom v3.3 and it say get prop bootloader and i looked up the error everyone said to update your bootloader and thats how i got into this mess. :'( but thank you bro i really appreciate you took the time out of your day to help me.
ImJusDatGuy said:
i've read this one thread and ive downloaded the modem and the rom ive tried to instal was a kitkat version of quatom v3.3 and it say get prop bootloader and i looked up the error everyone said to update your bootloader and thats how i got into this mess. :'( but thank you bro i really appreciate you took the time out of your day to help me.
Click to expand...
Click to collapse
thanks man for telling me what was wrong your an amazing human being and i love you (no homo) and thanks again a million thanks bro.
Did that modem fix some of the problems?
If your on 4.1.1 shouldn't you flash the DKL3 version or can't you just flash thru Odin the DLK3 stock ROM thru Odin Amd start all over again
I've been on 4.3 with that bootloader Amd have flashed back to 4.1 back to the baseband version DLK3 firmware. I would think being on 4.1 you should be able to reflash using Odin to fix the issue or flash the modem for 4.1 .

Categories

Resources