1. For battery usage is very depends on the signal strength of the network coverage also, and you not stated that your some web browsing and whatapps is how long, but for my experience Rocket ROM with good standby time also even with my data ON can last for 1 day
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Depend on signal strength?? what u mean?? only surf n watsap bout 15 min then lock the phone
2. Market crash? do you do a full wipe, what I can suggest is do a full wipe/cache, and then flash V22, after that upgrade to V23, previously I with V23 and don't have any bugs in one week time, currently I with MIDNOTE 3.1 already
Thanx 4 that.. maybe i flash didn't do wipe data/factory.. anyways, how bout v23 compared. V22??
Added on April 6, 2012, 2:05 pmJust to share for who interested to flash MIDNOTE 3.0 or 3.1, I discover that the instruction at step13 of MIDNOTE thread is not so clear and not suitable for Malaysia's user ( I don't know for other forumer, but I can't download Google Maps direct from Malaysia Play Store if follow that step)
Ok, after finish all the step and until step 13, what I did is
Download Market Unlocker form Play Store, fake to US telco, then download and install Google Maps.
Then continue with stpe 13,
after that set GPS "off", open Maps, answer "ignore" if wants to check positions settings, then LOCATE YOUR POSITION (wifi or 3G data must be ON)
So the location should be work