Upgrade a 2.1 Rooted Evo to Froyo - EVO 4G Q&A, Help & Troubleshooting

I tried searching on this and closes match I could find was this:
http://forum.xda-developers.com/showthread.php?t=743352
However, that refers to a "Leaked" Froyo firmware. What I'm trying to do is to upgrade my already rooted 2.1 Evo to Froyo (2.2) and then root that of course
If I try to do a OTA upgrade automatically through the phone, I get an error. Anyone advise what the best method of doing the upgrade would be?

Maybe try this -
http://theunlockr.com/2010/06/14/how-to-unroot-the-htc-evo/
I had stock 2.2 with the latest OTA and rooted it. It was very very simple. Here's the link-
http://forum.xda-developers.com/showthread.php?t=787304

Hah. Very interesting question. Ok, so rooting lets you change the system as well as the other partitions. Froyo and eclair are both system changes, so try flashing a froyo rom. Didn't you research before rooting?

Yep, you're right. I'd blame it partly on being 1 AM and partly for not thinking it through. Thanks.

Related

[Q] Can't Flash Back to 1.47 with RUU

Hello All,
I have an EVO that was running 1.47 (rooted) with no issues. In anticipation for a 100% bugless Froyo ROM I unrooted with the 1.47 RUU so I wouldn't have any issues with the Official OTA. After HTC pulled the ROM I found the manual install version here at XDA and wanted to give it a shot.
While searching for the 3.26 "official" update I stumbled upon Ava's 2.2 ROM. I tried to reroot using SimpleRoot OTA and install Ava's ROM. Once I got to step four I received the error that the original version of the ROM was newer and it wouldn't finish. I tried to follow the steps found in thread ID 7454229 (can't post links yet) but received a Error 140: Bootloader Version Error. I figured that the rooted ROMs for 2.2 weren't far off and one of the geniuses here at XDA would have it rooted in a day or two - so I didn't think twice about just updating to the "official" HTC 2.2.
I received an email with Flipz' new Fresh v3 beta and wanted to jump ship back to the rooted world. When I attempt to reflash the 1.47 RUU I still receive the Error 140: Bootloader Version error. So I'm kind of stuck, I know I'm not rooted anymore (I get prompts from Quickboot and ROM Manager) and I can't flash to an older version to re-root. I've searched and tried repeated times with no success - can anyone help me?
Thanks in advance for all of your help!
Wait, so are you on 1.47 or on Froyo? I'm a bit confused. If you are on 1.47, then you shouldn't have a problem rooting using one of the 1.47 root methods. If you are on Froyo, you are screwed for the time being.
I'm on the 3.26 Froyo update. I was trying to get back to 1.47 via the RUU to reroot with SimpleRoot OTA. Sorry for the long winded, confusing post. I was just trying to provide as many details as possible. I kind of conceded to just waiting for the official 2.2 OTA and an XDAer to root it. I'm just impatient and really want to try out Fresh v3 and Fresh Kitchen.
Thanks for the quick reply!

[Q] Downgrading from froyo

Im new to this forum and I had a few questions about downgrading from the stock froyo 2.2 back down to 2.1, I installed it manually I was wondering if there is any way to do this?
Jacoblee0123 said:
Im new to this forum and I had a few questions about downgrading from the stock froyo 2.2 back down to 2.1, I installed it manually I was wondering if there is any way to do this?
Click to expand...
Click to collapse
As of right now there is no possible way. But give it time.
i'm looking to downgrade as well if anyone hears of anything!
I was reading about someone downgrading their nexus one froyo back to eclair using andoid sdk and some rooted sign file and a recovery file. Lucky nexus one users lol.
Anyone know anything about this?
if you want to downgrade then wait, it took a long time to root the last OTA.
If you want to upgrade and keep root, NEVER accept anything from sprint, only install from XDA or a similar forum.
The fact that this is an entire OS upgrade can either be a good or bad thing in how long it's going to take to root.
Look at it this way: If you could downgrade to 2.1, there would be no warnings or questions about how to root after flashing the 2.2 update. The answer would be "downgrade to 2.1 and root it like before."
But once 2.2 is rooted, you will most likely be able to flash a 2.1 stock or custom ROM if you wish. Just make sure you flash one that's pre-rooted.
Thanks for all the info guys, I wanted to downgrade to run cyanogen mod and overclock etc.

[Q] Rooted 2.1 w/ custom ROM to 2.2?

I'm pretty new to all this rooting and ROMs and everything, but at the moment, my dinc is loaded with 2.15 radio/SR2.5 vanillia/S-OFF, but I want to get the OTA update for the official 2.2 android. I don't really understand how to do this, and I'm afraid I might mess something up, so any help please?!
http://forum.xda-developers.com/showthread.php?t=760306
Section 6
Try it. Read and understand what you are going to do...before you do it. Then ask if you have any questions!
Well I'm able to go back to 2.1 sense, but I still have the 2.15 radio. Can I update from the official update with the new radio, or do I have to downgrade it back to 1.x
You have to go back to the stock radio. That's part of what the OTA is looking for. If you have an upgraded radio, it's going to skip your phone.

[Q] July 2.2 to OTA 2.2 Help

Hello everyone,
I installed the 2.2 incredible ROM leaked in July. Now the official 2.2 is out and I assume that it would be wise to update to it. I am sure this is quite obvious for some but I am not sure what the exact process for my update should be. I updated the radio to the 2.x one in order to update to the leaked 2.2 ROM. I had thought that attempting to install this twice bricked a phone so I am unsure as to whether I can safely just load the OTA 2.2 ROM without bricking my phone.
Thanks
flashing the same* radio twice will brick your phone- yep. check Berzerker7's -The ultimate get back to stock- thread for instructions.
Good luck.
If you have a 2.xx radio you should be able to flash any 2.2 Rom using clockwork

[Q] Methods to update from 2.1 to 2.2

Long story short;
Bought a used Incredible to replace my rooted D1.
Ended up being rooted and still on 2.1 update-1.
I unrooted/wiped hoping it would update to 2.2 but no luck.
I don't have a problem rooting this phone but I would like to get the official 2.2 update on the phone first.
I searched around and found a couple links;
http://forum.xda-developers.com/showthread.php?t=737400
Now, according to this first link you either need to be rooted with a 2.x radio or root and flash a 2.x radio. (My device does not have a 2.x radio, for the record I have 1.00.03.04.06)
Here's another link;
http://free-pc-guides.com/news/how-to-manually-install-latest-ota-for-htc-droid-incredible-06428
Does this method appear legit? Does this update.zip provide the neccessary radio?
Usually this would be a no-brainer for me but Im confused why the first link requires you to manually flash a newer radio before FroYo...
I would re-root and flash the OTA deodexed ROM thats rooted. PM me for link. or run the most recent RUU to get to most recent release.

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