iPhone13 Factory-Level Repair | Super Capacity Battery + Rear Glass! 10-Hour Livestream Battery Test

Full repair process for iPhone 13 with completely shattered back glass and degraded battery health.The original battery dropped to only 75% maximum capacity with service warning, requiring frequent daily charging. We replace the broken back glass and install a VEKEN high-capacity battery with original zero-cycle protection board. The device runs on iOS 18.6.2 without upgrading to the latest system. We thoroughly clean the bottom speaker mesh and earpiece dust, soften waterproof adhesive for safe screen removal, and protect Face ID module and rear camera. Disassemble the motherboard, earpiece and camera components to avoid high-temperature damage during back glass replacement. Clean old glue residue thoroughly, apply AB glue and install the new back glass, then heat and pressure hold for perfect fitting. We upgrade to VEKEN 3640mAh high-capacity cell, actual discharge capacity up to 3700mAh, paired with brand-new original zero-cycle protection board. Compared with the original battery (2485 cycles, 76.5% health), the new ultra-capacity battery has 0 cycles and 102.1% efficiency with standard normal voltage. Reinstall all components, apply factory waterproof adhesive and perform professional pressure retention. The high-capacity battery with original zero-cycle protection boardshows unverified status but supports normal battery health checking.Real endurance test: continuous watch live streaming lasts 10 hours and 16 minutes with brightness and volume set at 50%.