Fix a problem 165
Hardware issues 165
Phone is slow or unstable 165
Phone feels warm or hot 165
Phone won't turn on 166
Phone restarts or crashes 166
Screen is frozen or won't respond 167
Screen displays wrong colors 168
SD card problems 168
Call and SIM issues 171
Problems making/receiving calls 171
Problems during calls 172
Battery issues 175
Charging problems 175
Battery drains too fast 175
Bluetooth, Wi-Fi, USB issues 177
Bluetooth problems 177
Wi-Fi problems 179
Can't transfer files or connect to computer 180
Account and sign-in issues 182
Forgot unlock code 182
Can't sign in to Google 182
Account sync issues 182
App issues 184
App problems 184
Camera problems 185
Messaging problems 186
Gmail problems 188
Play Store problems 188
Maintenance procedures 189
Update Android software 189
Reset Wi-Fi, cellular data, and Bluetooth 189
Reset phone 190
Get more help 191
Regulatorio (México) 191
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