I currently have 2.2 with the leaked radio update but the location services and gps are not functioning at all so I wish to go back to stock. Is it possible to go back to 2.1 stock using the PB31IMG.zip file from the Hboot menu? How do I downgrade the radio back to 1.0? Does the radio need to be downgraded before or after I flash back to 2.1? or does the radio downgrade matter?
Once your radio is flashed to 2.05 (newest version) you can put any rom you'd like on your incredible. You could even install your old 2.1 and it will work fine (if not better) than your old radio.
You should just be able to go to clockwork mod recovery and restore your last nandroid backup or get another 2.1 rom off http://incredibleroms.com
Thank you! I used the nandroid backup I had and everything is good. Is it possible to take the radio back down to stock if I ever need to?
the new radio is the stock radio. it's just the radio from the most recent OTA. You shouldn't ever have a need to downgrade.
so no need to have concern accepting any OTA from verizon if I manually applied the leaked radio update?
thedude_abides said:
so no need to have concern accepting any OTA from verizon if I manually applied the leaked radio update?
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I believe the update will look at your hboot version.
If I understand correctly the hboot version is changed when I root? So applying the PB31IMG.zip will take me back to the original hboot?
thedude_abides said:
I currently have 2.2 with the leaked radio update but the location services and gps are not functioning at all so I wish to go back to stock. Is it possible to go back to 2.1 stock using the PB31IMG.zip file from the Hboot menu? How do I downgrade the radio back to 1.0? Does the radio need to be downgraded before or after I flash back to 2.1? or does the radio downgrade matter?
Click to expand...
Click to collapse
Just do a wipe/factory reset and it clears the GPS issue up!
Related
I never saw an answer to this question. But I did see someone say that they went back to 2.1 after they were running the new leaked 2.2 ROM. I also recall reading somewhere that once the new radio is updated, you can't go back.
If I am currently running Froyo 2.2 with version 2 radio, can I just RUU, then run Unrevoked to restore root, and then restore my nand backup to go back to were I was before I started, which was Eclair 2.1 rooted with v1 radio???
No speculation please. I want to know if this is possible. Preferably from a dev or someone who has done this successfully.
Thanks in advance!
You're making this way too complex (RUU, etc.). Just nandroid back and you're good.
Will nandroid also downgrade the radio??
Diginut said:
Will nandroid also downgrade the radio??
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Click to collapse
No.
No.
No.
No.
(10 character minimum...)
The OP stated that he wanted to go back to V1 of the radio. So if a nandroid restore won't downgrade the radio, then what options are there?
I believe this is what you are looking for.
http://androidforums.com/all-things-root-incredible/123816-how-revert-back-earlier-version-hboot.html
My question is... if you do this Froyo 2.2 as in the developement area, because your phone is rooted when you are done, I don't think you will be able to get any further updates until you un-root. So do we have to revert all the way back to 2.1 or radio version 1?
I think I'll wait.
Diginut said:
The OP stated that he wanted to go back to V1 of the radio. So if a nandroid restore won't downgrade the radio, then what options are there?
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No, the OP stated that he'd "heard somewhere" that he needed to go back to V1 of the radio. I said he was making it too complex, just nandroid restore.
Really, it's that simple.
I forgot to nandroid after unrooting and installing the 2.1 ota leak. I am now rooted with the 2.1 ota leak and flashed the froyo leak. How would I go about getting back to stock?
So if we had previous 2.1 nandroid backups we can just restrore those? (while leaving the new HBOOT and radio of course)
I just want to be clear.
Currently I am running stock 2.1-update1, with a hydra kernel and s-off.
If I update my radio, am I going to have any problems with getting 2.2? Should I just wait for the OTA to come, and flash a recovery after I've installed it? If I do the radio update early, is my stock 2.1 going to keep working fine?
Seriously, nothing on this? What does updating the radio do other than allow 2.2?
JetBomber117 said:
Currently I am running stock 2.1-update1, with a hydra kernel and s-off.
If I update my radio, am I going to have any problems with getting 2.2? Should I just wait for the OTA to come, and flash a recovery after I've installed it? If I do the radio update early, is my stock 2.1 going to keep working fine?
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Click to collapse
I don't really know what your asking, and I'm sure that's why no one else has chimed in. But here is my best attempt to figure out what I can do to help.
To get the 2.2 OTA to install, you NEED stock recovery.
What I would do if I were you, and this is what I am currently doing -
keep S-OFF, un-root the phone by getting the stock recovery -
try this
androidforums.com/incredible-all-things-root/99828-video-howto-unroot-incredible-downgrading.html - sorry can't post links yet. cmon MODs! lol j/k
and then you'll be able to get the 2.2 OTA and then be able to put clockworkmod recovery back on and attain root.
"If I do the radio update early, is my stock 2.1 going to keep working fine?"
are you asking, will 2.1 still work with 2.15x radio?
to put it simply - yes,
but with s-off, what I used to do, if keep a file of both the 1.x radio, and 2.15x radio on your sd card, and if you want to flash either one, just move it to the root of the sd card and either go back up to 1.x or go back down to 2.15x radio.
Thank you, that actually cleared things up perfectly. Sorry for the foggy wording.
I need to send in my phone cause the speaker blew.
Currently I have 2.2 custom ROM with S-OFF. What steps can I take to revert it back to 2.1 S-ON. What order should I take these steps in. Any help is appreciated. Thanks!!!!
paugster said:
I need to send in my phone cause the speaker blew.
Currently I have 2.2 custom ROM with S-OFF. What steps can I take to revert it back to 2.1 S-ON. What order should I take these steps in. Any help is appreciated. Thanks!!!!
Click to expand...
Click to collapse
I doubt it would be necessary. http://forum.xda-developers.com/showthread.php?t=760651 section 5
http://forum.xda-developers.com/showthread.php?t=768295
I basically would like to flash my phone to the stock 2.1 software. As soon I do the script to turn S-ON I am unable to load the stock 2.1 because it is saying it is an older version after it check the PB31IMG.zip file.
paugster said:
I basically would like to flash my phone to the stock 2.1 software. As soon I do the script to turn S-ON I am unable to load the stock 2.1 because it is saying it is an older version after it check the PB31IMG.zip file.
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Just flash the newest leaked 2.2 Image as verizon is rolling them out anyway. They wont know that it was not an OTA. The softwrae version number and kernal will match the OTA's numbers.
paugster said:
I basically would like to flash my phone to the stock 2.1 software. As soon I do the script to turn S-ON I am unable to load the stock 2.1 because it is saying it is an older version after it check the PB31IMG.zip file.
Click to expand...
Click to collapse
The reason you can't go back with S-On is because your bootloader is too new. Flash the stock 2.1 image (with the 1.x radio and whatnot), re-root the phone so you can turn S-off, flash the 2.1 image again. This time it should work since you are on the correct bootloader.
Ta-DA!
Hi,
Coming from HTC Hero running VillainROM 1.7 it did not take long before my DHD was rooted. Did Radio S-OFF; wasn't quite ready for the ENG. I thought I'd flash the radio but that did not happen without ENG. So my strategy is to have a backup of the current ROM, do the OTA and then revert to my backup via Clockwork.
I hope my strategy is OK.... but where is the OTA??
Thor
There are some problems with your strategy buddy.
If you flash the ota you will loose the clockworkmod recovery. Since you can't root stock 1.72 then you won't be able to flash it back again either. Since you have radio s-off all is not lost. You can get root back by flashing back to the older 1.32 ruu and re rooting. When you flash that it will revert your radio back to the older one however.
If you want to update your radio and nothing else you don't have a choice but to get engineering hboot s-off.
Ok, found a tool for ENG S-OFF that I can risk
Radio update then and check improvement in stock ROM before going custom.
Thor
First let me apologize if this has been answered before, but I could not find my specific question nor answer.
I am on baseband 2.15 and am trying to downgrade to 2.05. When I try to flash the radio in zip format, I get an error stating that my os is to new and that everything after 1.5 will not be able to flash this specific radio. This is not the same as downgrading from 2.15.x.x to a lower 2.15x.x. So please don't point me to this type of example.
Does anyone know, step by step, how to get this done?
Thank you in advance.
Edit: hboot 0.97
Radio 2.15.00.09.01
S-off
Rooted via unrevoked forever
Newer versions of the stock ROM may not work well or at all with older radios.
You may need to rollback to 2.2 to use the older 2.xx radios. 2.05.00.06.10 came out with the 2.2 froyo rollout. The newer gingersense ROMs probably can't be used with such an old radio.
Why do you need to roll back to 2.05 anyway?
MultiDev said:
Newer versions of the stock ROM may not work well or at all with older radios.
You may need to rollback to 2.2 to use the older 2.xx radios. 2.05.00.06.10 came out with the 2.2 froyo rollout. The newer gingersense ROMs probably can't be used with such an old radio.
Why do you need to roll back to 2.05 anyway?
Click to expand...
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Need to get my radio to a point where the nvm is writable.
Edit: update, got the radio to downgrade by using rom manager with clockwork recovery 2.5.0.7 and flashed radio update.zip
It was an amend error. An old version of Clockwork - as you did - or Amon Ra would be needed to flash it. Next time you flash radios (or anything that gives you that error) you'll either have to find an edify version or downgrade/switch recovery again.
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