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I know that this is such an old device, but I use it for MP3 playing as I dont wanna pay for Spotify Premium for no ads. For whatever reason after CDMA was shut down in my area, my LG VX8550 is getting horrible battery life. Replacement battery made no difference. How do I fix this without unlocking it to roam on T-Mobile?
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Generally what's happening is that when a phone can't detect a cellular signal, it boosts both the incoming antenna signal and the outgoing signal to their maximum power levels in order to try and detect a cell tower or connect with one. So yeah, the fact that it can't find a cell tower means it's going to be trying its hardest and using up your battery rapidly.
Modern smartphones usually have a way to switch cellular data on and off, and as it turns out, there's a similar feature on your phone. It's called Standalone Mode and disables calls, Bluetooth and web access (cellular data). Here's how to turn on Standalone Mode on your phone, according to the Chocolate by LG User Guide.
Unfortunately they've tied Bluetooth into that control, so if you're using Bluetooth headphones you'll have to switch to wired headphones, but that should take care of your power drain issues.
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That's why old GSM phones are better for this; take the SIM out if you can forego it (or use the PRL programming mode, like on old RAZRs) when you can, or just buy a SanDisk player.
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Hi @stechkid
Have you checked that the Bluetooth is turned off, unless you're using it to listen to the music through BT earphones?
If you don't use it, turn it off as it uses power scanning for new devices to pair with.
jayeff さんによる
Even with BT off, it still has bad battery life. It just shows "searching...." on the home page, and no bluetooth and I only turn it on to use it.
80stechkid さんによる