iPhone 14 Plus 4325mAh Tag-On battery, no soldering or programming required.

How to install the battery:

• Turn off the device.
• Disassemble the device using the appropriate tools.
• Carefully remove the old original battery, making sure not to damage the motherboard or other components.
• For original Battery Management System (BMS):
  • Carefully remove the covering stickers from the original BMS, making sure not to damage the surrounding components.
  • Cut the leads with non-conductive scissors.
• Apply the sticker to the original BMS of the old battery.
• Attach the old BMS to the new battery by connecting it to the secondary FPC connector, making sure the connectors are oriented correctly.

Continue with battery installation:

• Apply the cover stickers to the original BMS securely.
• Install the new battery into the device and connect the FPC connector to the motherboard.

– Turn on the device.

• Perform a device reset (3utools fix battery health during flash) .