The dead cell phone may be caused by many reason, but when it was broken and in dead situation, what you will do? how will you deal it? change an new one or fix it? In this article, VIPFIX will teach you some efficient way to solve this problem.Some professional cell phone repair tools will be required. Hope it will be helpful for you!
Okay, let us start our repair process:
- Take out the battery and see if it is charged. Use the phone repair multimeter to check the voltage. The voltage must be above 3.7 volts. Apply a battery booster to increase battery power and recharge it again.
- Check and clean the battery connector and the battery point to remove carbon deposits. if it doesn't work, then replace the battery connector.
- Insert the charger to check whether the battery is charging. If there is a "battery charging" icon, but the phone does not turn on, check the power on/off switch. The voltage of the switch must be 2.5 to 3.5 V. Clean or replace the switch. Check whether the switch needs a jumper to help.
- If the phone can't turn on after the software is reflashed, heat CPU, power IC and flash IC.
- If there is no voltage on the power on/off switch, check whether the track to see whether it needs a jump wire.
- If the problem is not solved, reball or replace the power IC and CPU to solve the problem.
- Take out the battery and see if it is charged. Use the phone repair multimeter to check the voltage. The voltage must be above 3.7 volts. Apply a battery booster to increase battery power and recharge it again.
- Check and clean the battery connector and the battery point to remove carbon deposits. if it doesn't work, then replace the battery connector.
- Insert the charger to check whether the battery is charging. If there is a "battery charging" icon, but the phone does not turn on, check the power on/off switch. The voltage of the switch must be 2.5 to 3.5 V. Clean or replace the switch. Check whether the switch needs a jumper to help.
- If the phone can't turn on after the software is reflashed, heat CPU, power IC and flash IC.
- If there is no voltage on the power on/off switch, check whether the track to see whether it needs a jump wire.
- If the problem is not solved, reball or replace the power IC and CPU to solve the problem.
After we finished the above process, if your phone still can't open, maybe you can come to our official WEB to see the reason. Another, we still are very glad to share our repair tool with you guys, amazon shop and so on.
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