Change the battery on your Samsung Galaxy A70 wholly by yourself. All you need is a Samsung Galaxy A70 DIY Battery Replacement Kit, and some time. Follow the instructions step by step, and you will soon be able to enjoy a well-working battery again.
1) Switch off your device
To get started turn off your Galaxy A70 completely to avoid damaging it during the repair. Press the on/off button for about three seconds until "Switch off" appears then confirm it by taping on it.
2) Extract SIM card tray
Insert SIM extractor into the small hole of the SIM drawer, which is on the left side of the phone. Exert a slight pressure and SIM drawer will eject himself.
3) Heat the back of the phone
To remove the back cover you will need a heat gun or hair dryer to soften the glue that holds it. Use a hairdryer or a heat gun to heat the back of the phone for 2 to 3 minutes to soften the glue that holds it. If you feel the resistance in the next steps do not hesitate to heat the back for a few more minutes.
4) Remove back cover
Insert the spatula between the rear window and the frame to create a slight opening and then insert a pick to take over. Gently slide the pick all the way around the rear window (Try not to stick the pick in too far because that could damage the flex cables). Now you can lift the back of the phone.
5) Remove internal chassis
Unscrew the 14 screws using the Philips screwdriver and start unclipping the internal frame form the rest of the phone by inserting spatula into the first corner. Unclip the entire top of the phone leveraging the spatula. Continue the operation on all sides of the A50. Then finally, you can gently separate the internal chassis from the rest of the Samsung Galaxy A70.
6) Disconnect battery
Get the nylon spatula from the kit, and use it to disconnect the battery.
7) Remove bonding web
Use the same spatula to disconnect the bonding mat on the motherboard. Then do the same on the charging connector side. Good job, the bonding web is deposited.
8) Heat the front
Flip your Galaxy A70 to heat the front side of the battery for a few seconds to soften the glue that holds the battery. Watch out not to heat the battery directly. Also, do not overheat the center of the LCD for a long time because you may damage it.
9) Remove the old battery
Flip the phone again and gradually slide the flat wider spatula under the battery to fully unstick it. And then remove the old battery.
10) Reassemble with the new battery
Your Samsung Galaxy A70 is now ready to insert the new battery and take everything back together. So take your new battery and reassemble your Galaxy A70 by following this guide in reverse order, and then test everything up to make sure you did everything properly.