Tablet2 Battery Charging

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The key is to connect the charger before switching to "BAT" position. Charging of completely depleted battery requires having serial connection and stopping in uboot.


Charging of completely depleted battery

Ensure power switch to "OFF" position

1 battery charging.png

Connect serial cable

2 battery charging.png

Flip the power switch to "BAT" position

3 battery charging.png

Connect USB wall charger

4 battery charging.png

When u-boot message appears on terminal stop it in u-boot by pressing key, don't let the kernel start booting

5 battery charging.png

Leave it for 1 hour, and then let kernel to boot

If battery is charged to the level at which the kernel can boot, the battery charger can be continued with USB or AC charger

Regular Charging

AC charging

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