Database Develop

how can i get the official 2.1 update?

Do i have to unroot?

Yeah, running the 2.1 ruu willl unroot you, but root had just been found, so go find that thread.

http://forum.xda-developers.com/showthread.php?t=694572

Root without unlock - FRF85B and FRF91

... does it still work? Has anyone tried?
I am currently on FRF85B with no OTA notification for FRF91.
Since I have quite a few problems, I am tempted to upgrade to FRF91.
Before I do, I would like to know whether it is possible with FRF85B and/or FRF91 to root without unlocking (as it was with FRF83 I believe).

How To Root Nexus with 2.21 OTA Update - Here.

Rooted the 2.2.1 OTA update by the same method (prior to the update) with no issues. See original thread and how-to here.
http://forum.xda-developers.com/showthread.php?t=724166

[Q] how to unroot

I recently rooted my phone using the unrevoked forever 3.22..i want to unroot it plz help..with step...also guide me how to install android 2.2

Flash a RUU from shipped ROM's:
http://shipped-roms.com/index.php?category=windows mobile&model=Buzz
Guide to that is here:
http://forum.xda-developers.com/showpost.php?p=8926482&postcount=7
You can get an Eclair ROM from Shipped ROM's and then get an OTA (Over The Air) update, else, you can directly flash the official 2.2 ROM from here:
http://forum.xda-developers.com/showthread.php?t=887161
Remember a few things:
* If you install the 'Safe Version', you can root again later if you want
* If you follow the previous guide and get an OTA 2.2 update, you will lose your ability to root, and will be unable to do so till Unrevoked is updated.

how to downgrade from FRF91 to FRF85b

hey guys
last 4 days before my nexus one working good on froyo..but before 2 days it show me 4 color screen and stuck there ..
so thats why i flashed with PASSIMG FRF91...now my phone get restart and hang sometimes...and there is also low stand by time problem in FRF91..
so anybody can tell me how can i downgrade to FRF85b again...
waiting for reply..also give me link of which file i wana flash on my phone..
thank you in advance...

You should use the FRG33 passimg as per Wiki, then upgrade to FRG83D.
Also, wrong section.

my hboot is 35
norfo said:
You should use the FRG33 passimg as per Wiki, then upgrade to FRG83D.
Also, wrong section.
Click to expand...
Click to collapse
ok as u said i need to use FRG33 ( FRG33 is upgraded version than FRF91 ?)

Just grab the image from here: http://developer.htc.com/

Have you tried the last update (FRG83D)?
Although if you want the FRF85D, first flash the FRF50 update (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/update-nexusone-FRF50-signed.zip) and then upgrade to FRF83 with oficial recovery (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/Update-Passion-FRF83-From-FRF50.zip) and finally upgrade to 85D (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/Update-Passion-FRF85B-From-FRF83.zip)
http://android.modaco.com/content/g...es-zip-online-kitchen-optional-root-insecure/

my nexus one is korean n1 and its on hboot 0.35
gerar_f said:
Have you tried the last update (FRG83D)?
Although if you want the FRF85D, first flash the FRF50 update (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/update-nexusone-FRF50-signed.zip) and then upgrade to FRF83 with oficial recovery (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/Update-Passion-FRF83-From-FRF50.zip) and finally upgrade to 85D (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/Update-Passion-FRF85B-From-FRF83.zip)
http://android.modaco.com/content/g...es-zip-online-kitchen-optional-root-insecure/
Click to expand...
Click to collapse
hey dude my n1 is korean n1 with hboot of 0.35 ..so downgrade to FRF85d will not cause any problem or not?
i dont wana update my N1 becasue if i update than i cant be able to root or install cynogen mod rom to my phone (if i need).
My phone was working fine before i update to FRF91 (No restart problem or hang so thast why i wana downgrade back)..

can u tell me how to flash FRF50 update to nexus one
gerar_f said:
Have you tried the last update (FRG83D)?
Although if you want the FRF85D, first flash the FRF50 update (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/update-nexusone-FRF50-signed.zip) and then upgrade to FRF83 with oficial recovery (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/Update-Passion-FRF83-From-FRF50.zip) and finally upgrade to 85D (http://loadbalancing.modaco.com/download.php?url=paul/nexusone/Update-Passion-FRF85B-From-FRF83.zip)
http://android.modaco.com/content/g...es-zip-online-kitchen-optional-root-insecure/
Click to expand...
Click to collapse
hey dude i have download frf50 update..can u tell me how can i flash frf50 to my frf91 nexus rom...? can i flash by changing name to PASSIMG or can i change the name to Update.zip??
reply please soon

swapniladsure said:
hey dude my n1 is korean n1 with hboot of 0.35 ..so downgrade to FRF85d will not cause any problem or not?
i dont wana update my N1 becasue if i update than i cant be able to root or install cynogen mod rom to my phone (if i need).
My phone was working fine before i update to FRF91 (No restart problem or hang so thast why i wana downgrade back)..
Click to expand...
Click to collapse
Korean N1 was released with 2.2(FRF91) from the start, IIRC. So I don't know if downgrade is possible. (And, you can still root your device via rageagainstthecage exploit after upgrading it to 2.2.1(FGR83))

can i able to install custome rom after update to fgr83 as u say
LFact said:
Korean N1 was released with 2.2(FRF91) from the start, IIRC. So I don't know if downgrade is possible. (And, you can still root your device via rageagainstthecage exploit after upgrading it to 2.2.1(FGR83))
Click to expand...
Click to collapse
hey dude if i update to fgr83 and after update if my phone work well than it is ok ( not get restart) but if after update my phone again get restart while surfing or using any apps ..than it is possible to root and install custom cyanogen mod rom on my nexus one??