765 views Yuda Electronic (HK) Technology Co.,Limited. 2018-03-14
1. Turn off the device. 
2. Take out the slot .
3. Use the hair drier to heat the phone for a while. It’s used to soften glue to make it’s easier to disassemble the phone.
4-6. Use the crowbar to prize up the back cover.
7. Use the cross screwdriver to take down 8 screws.
8. Remove the protection cover with the plastic crowbar.
9. Disconnect the battery’s flex cable.
10. Take down the battery with the metal plate crossbar.
11-13. Install the new battery. Fix the flex cable.
14. Install the protection cover.
15. Install the 8 screws.
16-17. Install the back cover.
18. insert the SIM card slot and SIM card.
19. Turn on the phone and check its operation status.
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