This method probably has been circulating around, but I will give you the steps I performed and now I'm sitting on 8.0 battery life with 8.1 DP for the Lumia ICON after the new firmware update.
Note: I USE BATTERY PERFORMANCE APP, I WILL POST MY RESULTS AS TIME GOES ON.
My Current consumption rate per hour has fallen to 2%, goes up to 4% when I use it a lot.
For the longest time since the DP update, I have had dreadful battery life. The following method has currently have my phone sitting on 13 hours of last charge, and 17 hours remaining at 45%
This will require you wipe your phone fully, please backup your data.
This method was done over the weekend, so please allocate proper time when performing this method.
Problems:
1. 2-3 Second pause from hitting the power button to seeing the screen.
2. Wifi has become more stable, but not Windows 8.0 stable. (I was able to download 3.5GB Nokia Maps quite quickly and no over heating at all).
3. No over-heating so far.
I will update this moving forward.
Note: I USE BATTERY PERFORMANCE APP, I WILL POST MY RESULTS AS TIME GOES ON.
My Current consumption rate per hour has fallen to 2%, goes up to 4% when I use it a lot.
For the longest time since the DP update, I have had dreadful battery life. The following method has currently have my phone sitting on 13 hours of last charge, and 17 hours remaining at 45%
This will require you wipe your phone fully, please backup your data.
This method was done over the weekend, so please allocate proper time when performing this method.
- Download the Nokia Recovery Tool: FAQ - FAQ - How can I recover/reset/restore my phone software? - Nokia - USA
- Once all updates are complete, prepare your phone for a full format, but note this will install the new firmware update: 1417.0047 + Windows Phone 8.0
- Once the update is complete, go through the setup wizard, login with your Microsoft Account, but do not restore any previous image.
- A phone update will not be needed because the Nokia Recovery Tool handled that for you, download the Developer Preview and perform all updates.
- Once it is complete, do not format again, but continue to use the phone as usual by starting all over (re-download apps, start+theme, etc)
- Important Step: Let your phone completely die out (You will see unstable numbers and fluctuations, yes let it drain completely and re-charge fully). Yeah this is the weird, pessimistic step, but it worked.
- Today (I did the method yesterday), my battery is back (I use it extensively all day, I did not disable any feature other than Wifi-Sense Only.)
Problems:
1. 2-3 Second pause from hitting the power button to seeing the screen.
2. Wifi has become more stable, but not Windows 8.0 stable. (I was able to download 3.5GB Nokia Maps quite quickly and no over heating at all).
3. No over-heating so far.
I will update this moving forward.
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