Help i have a droid razr that i purchased from a 3rd party a few months back. The phone died when i got home and would no longer charge or recognize the battery. When the phone is off and on the charger i get a large battery symbol with a question mark in it. I recently purchased a replacement battery that came fully charged and replaced it.The phone boots up fine but the little battery symbol in the top corner has a question mark in it also. When i check the battery status with this new battery it says 100%-unknown . Also while the phone is off i get that same large battery symbol with a question mark. What can i do. I do not want to risk purchasing another battery to run into the same problem.
I am on 4.04.
I've done a factory reset many times.
Both water damage indicators are unactivated.
I've brushed the terminal connectors on both and battery and phone clean and sprayed it with an air canister(and yes the canister was held upright to prevent any fluids from spraying out.
any help would be greatly appreciated!