Huawei F688 - Connecting the Power Adapter

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 Handset:
Connecting the power adapter
When you use F688, it is recommended that you connect the power adapter to F688.
 When new phones are delivered, the battery power is low. Therefore, charge the
phone for a while and then power on the phone the first time you use it.
 If the phone will not be used for a long time, remove the battery from the phone.
 If the battery has not been used for a long time or the battery is exhausted,
the screen of F688 may not function when you charge the battery again. This is
normal. After the battery is being charged for a while, you can power on the
phone for use.
 The battery supplies power for only a limited period. Ensure that the battery has
been fully charged before putting it in use.