Hello. I have a problem with my LG optimus 7. From what I noticed, or rather, from what I've got to test, if I do 3 to 4 pictures and the battery is less than 40%,appear the message "battery critically low" and the phone shuts down. I can open it only if I remove the battery,I wait 30 seconds,I put battery back, and when I start it, surprise: battery, 40%. I tried to flash with other ROM but nothing .
Thank you for help and sorry for my English !