Advice on going from 2.2.2 back to 2.2.1

[reapur]

Hi,
ever since last week when I updated to 2.2.2, my battery life has been crap. In the half hour it takes me to get ready and drive into work, the battery goes down to 60%. with 2.2.1 it was like 98% so something is messed up.
Nothing else has changed, no new apps.

I did the froyo update manually so I sort of know the mechanics of the process but I'm just wondering if I need to go back to stock and then to froyo and then the updates or if I can just download the 2.2.1 image and update with it.

thanks,

 

[haltemien]

I have the same problem :/

 

[Dirk]

Obvious answer but have you tried a factory reset? I would take a stab at it before using more aggressive solutions.

Failing that you can flash a stock rom using the passimg.zip method and OTA back up but at some point you will be back on 2.2.1 and getting nagged to update to 2.2.2 again.*

*It could be that i'm using the European varient of the firmware but i've not had the best of luck flashing back to older versions (It's a long story). Suffice it to say, every method failed at some stage so i flashed a 2.2.2 stock/custom ROM instead.

 

[HTCinToronto]

I'm getting consistent 20hrs+ to 30% running CM7 nightly. Can understand wanting to keep it simply stock and CM7 is pre alpha but my battery performance is about double.

Sent from my Nexus One using XDA App

 

[k_myk]

I'm getting consistent 20hrs+ to 30% running CM7 nightly. Can understand wanting to keep it simply stock and CM7 is pre alpha but my battery performance is about double.

Sent from my Nexus One using XDA App

Did I understand you correctly? You could only get 10 hours of your battery on stock rom?! And is there really a positive difference in CM7 battery performance? I know that some people (including me) had problems with that on CM6 so in my eyes CM is not the most battery efficient rom. Just curious..

About OP's battery problem. My N1 no different than before 2.2.2 update. Battery life seems the same. +1 for factory reset.

Cheers!

 

[reapur]

it could be time to root and go cutom

 

[mrtoken]

I had the same problem

And found out that it was google syncing (which i could not fix whatever i did). I wiped everything and started again.
This fixed it, however here are some tips to get good life on the nexus.
(This worked for me and saw my nexus 1 last 1.5 - 2 days before getting to 30%)

1: goto dial pad and do the *#*#info#*#* under phone set it from WCDMA to GSM perfered

2: Always use wifi where you can, wifi uses less battery than 3G, (this was a major saving in battery power for me) Set your wifi to always on (even when the screen is off). The 2 main places you spend most of your time is at home and work, set it up for those places and you will see your battery lasting a crap load
(my battery went from a drain of 7% a hour down to 2-3% by doing this).