Battery Replacement CS-SMA725XL Samsung Galaxy 5G Mobile Wifi SCR01

SIM Free（SIM lock is not locked from the beginning.）
The instruction manual is in Japanese only. You can change the language setting on your smartphone by yourself.
Main Specifications:
Dimensions Approx. 147 (W) x 76 (H) x 10.9 (D) mm
Mass about 203g
Interface USB 3.0 Super Speed (USB terminal Type-C)
Display Approximately 5.3 inches (720 x 1480 dots) TFT
Power DC5.0V, 1.8A
Built-in battery Lithium ion, 3.8V, 5000mAh
Continuous standby time
Domestic (Japan) *1
Wireless LAN (Wi-Fi®) not connected Approx. 790 hours
Continuous communication time *1 Wireless LAN (Wi-Fi®) connection *2 Approx. 1000 minutes (communication mode: standard mode / performance: optimized mode)
Environmental conditions Operating ambient temperature range: 5°C to 35°C
Operating ambient humidity range: 35% to 85% (non-condensing)
Charging time Approximately 140 minutes (when using TypeC common AC adapter 02 (0602PQA) (sold separately))
Approximately 160 minutes (when using TypeC common AC adapter 01 (0601PQA) (sold separately))
*1: Continuous standby time and continuous communication time vary depending on the communication network you use. Also, if you continue charging for a long time (approximately 16 hours or more), the built-in battery protection function will work and the continuous standby time and continuous communication will be reduced.
communication time may be shortened.
*2: Time when one wireless LAN (Wi-Fi®) device is connected.

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How did you remove the case cover? I can't find the way to open it..