Develop Bugs

From 2.2 Froyo back to 2.1 Eclair

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??
Click to expand...
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?
Click to expand...
Click to collapse
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.

[Q] NAND Backup Question

Hello
Im new to posting, but not new to the forums. I read this forums daily. I would like to take this time to say thank you to the whole community, I personally have benefited from all the custom roms and tutorials.
I have a question:
I was on 2.1 rooted and decided I was going to unlock my nand and get Fresh Evo rooted 2.2 rom (which is amazing by the way) so I did a NAND backup before starting the process of unlocking my nand and flashing the Fresh 2.2 evo rom. Now that I am on the 2.2 Fresh Evo rom I would like to restore my 2.1 nand backup to take a look at some important data on there, after restoring that backup can I come back to a backed up nand of 2.2 Fresh Evo rooted rom without having any problems?
Simply, can I go from 2.2 rooted to a NAND backup of 2.1 rooted stock, then come back to my 2.2 FreshEvo rom?
I appreciate the help!
Thanks

Exazrg said:
Simply, can I go from 2.2 rooted to a NAND backup of 2.1 rooted stock, then come back to my 2.2 FreshEvo rom?
Click to expand...
Click to collapse
why wouldn't you be able to? just make a nand of the freshevo rom
EDIT:
<--- NOOB AS WELL

Yes you can. I keep a Nandroid of Rooted 2.1 Stock, Rooted 2.2 Stock, and my latest CM6 Nightly that works handy at all times.

Thanks!
So just simple restores will do it when switching? No need for cache wipes or anything?

[Q] Backup & Downgrade?

Currently I am on Uk 2.21 2.1 rom and I want to upgrade to the new leaked UK 2.2 rom.
But actually I am happy with my rom because it is quite stable. So if I upgrade to 2.2 is there any way to go back and why? What about I build a backup for the Rom in advance and restore it later?
Thanks.

Hey before you flash uk rom 2.51 you shout do a nandroid backup because if you flash 2.51 you couldn't go back to 2.21 by flashing a sbf file. You only could root 2.51 with superoneclick and restore your old nandroid backup of 2.21.

Just follow the guide on Development forum. Got the uk 2.2 rom working yesterday, played around a little bit and are now back on 2.21 stock again and just restored a nandroid backup, nothing has changed. No prob.
Sent from my Defy

[Q] PRI included in Nandroid backup?

I am looking at trying out Virus' Kingdom Revo ROM, but am wondering about the PRI downgrade.
I have everything working really nicely with Gingerbread-EVO-Deck ROM and have it backed up with Nandroid (Clockwork).
If I downgrade the PRI and perform the Kingdom install, when/if I return to the Deck ROM via Nandroid, will I need to reflash the PRI, or will the Nandroid backup include that?
Thanks.

mevensen said:
I am looking at trying out Virus' Kingdom Revo ROM, but am wondering about the PRI downgrade.
I have everything working really nicely with Gingerbread-EVO-Deck ROM and have it backed up with Nandroid (Clockwork).
If I downgrade the PRI and perform the Kingdom install, when/if I return to the Deck ROM via Nandroid, will I need to reflash the PRI, or will the Nandroid backup include that?
Thanks.
Click to expand...
Click to collapse
You will need to reflash the PRI, if you want to. I find that the 1.77 works better for me on all ROMS. But yea, none of the radios are included in a nandroid backup.

[Q] Flashing custom ROM for the first time

Hi,
I have a UK unbranded Desire HD, 2.3.3 stock rom installed, however it is the official version that was leaked ahead of the UK release. Before upgrading to this ROM I did the downgrade process and while I was there I did the Radio and ENG S-offs. I also have root and have confirmed this using the terminal emulator.
My question is - Do I have to re-downgrade to a stock ROM lower than 1.7 to flash a custom ROM or is that done to get Radio and ENG S-off?
Also - When flashing a new radio, as one is recommended for the custom ROM I'm thinking of trying (Virtuous Unity), do I need to back up the original radio, or keep a note of what version it is with my nand backups? or is already backed up when I do the nand backup? This is in case I wanted to return to stock at some point in the future.
Any help is appreciated,
Cheers,
Grim.

If you already have root and s-off i would assume that there is no reason to downgrade again. As far as i am aware radio is not backed up by a nand backup so be best to take note of what radio you have.
Hit thanks if it helped
Ricey

Thanks Ricey!
I've taken a note of the Baseband version in the settings-->about phone section which I think is the radio version ?
I'm about to try it now so wish me luck!

grimbola said:
Thanks Ricey!
I've taken a note of the Baseband version in the settings-->about phone section which I think is the radio version ?
I'm about to try it now so wish me luck!
Click to expand...
Click to collapse
Yes thats right, you dont need luck just read and re-read the guides and you'll be fine
Ricey

ricey1986 said:
If you already have root and s-off i would assume that there is no reason to downgrade again. As far as i am aware radio is not backed up by a nand backup so be best to take note of what radio you have.
Hit thanks if it helped
Ricey
Click to expand...
Click to collapse
Hmmm, I didn't took note about radio used before flashing new ROM, but I have original ROM backed up. Now I have to find out somebody who have the same device not rooted and take a note about radio, right? that will be a problem, but not impossible... At least, I have NAND of original ROM

Flahing an original RUU also flashes the stock radio so wouldn't worry about it too much
Sent from my Desire HD using XDA Premium App

ricey1986 said:
Flahing an original RUU also flashes the stock radio so wouldn't worry about it too much
Sent from my Desire HD using XDA Premium App
Click to expand...
Click to collapse
Great, I was not aware about this. Thanks for clearing this for me

Thanks guys,
I'm now rocking Virtuous Unity 1.27 and it works a treat!
I haven't bothered flashing a radio, and won't unless I notice some issue, so far calls, wifi and mobile internet all work fine!
Also something weird did happen during the process - I did a titanium backup of all my apps and copied them off the sd card to my pc, then formatted the card (on the phone).
I then set about wiping the phone in the way described in the tutorial I read (using a zip called full wipe in the clockwork recovery)
After flashing the new custom ROM I booted up my beautiful new ROM, went through the initial setup only to find some of my old apps still on the phone!?
Noting in the Virtuous thread that a full wipe is REQUIRED, I thought, ok I'll wipe again and re-flash.
I did so, but this time I wiped through Clockwork (there's an option when you flash the rom through this app).
Same again! some old apps remained.
I then tried again, wiping using the technique in the video on the RCMix page (unmounting certain options in clockwork recovery screen).
Same again!
I carried on with the old apps still there, though have since uninstalled them for good measure.
Also, when I restored from the Titanium backup it annoyingly didn't link them back up with the market - I believe this is possible, but only with the paid version of Titanium.
If I hit any issues I'll let you know

Just a note about flashing radios. You may wan't to flash the recommended radio (pretty much the same for all ROMs these days) basically due to the fact that the chefs built their ROMs around that radio, and they know the optimisations are built for that one.
I have noticed some realy significance in battery drain when using an unmatched Radio when i thought i knew better than the Chef.
But gratz on your new ROM hope you enjoy being one of the free

Thanks for pointing that out wbbigdave, I wouldn't have taken that into consideration. I'll have a look at flashing the recommended radio tonight.
Cheers,
Grim.