Also known as Sony Ericsson ST17i, Sony Ericsson ST17a.
Released October 2011.
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You have pressed the power button but the phone does not turn on.
The battery may just not have enough charge. Make sure to plug in the phone with a known working cable to insure that the battery has enough charge.
If you are using a known good charge cable, it’s possible that the battery is dead. You may need to replace the battery.
The power button may be broken, and need replacement.
The screen may be dead. If you’ve tried all of the above, you may need to replace the screen.
Motherboard is faulty. It will need replacement.
There is one or more cracks in the glass of the screen.
Your phone’s screen will need to be replaced.
The phone powers off suddenly and unexpectedly during use.
The battery may just not have enough charge. Make sure to plug in the phone with a known working cable to ensure that the battery has enough charge.
If you are using a known functioning charge cable, it’s possible that the battery is dead. You may need to replace the battery.
The power button may be stuck, and need replacement.
The screen cable may be dislodged or is faulty. If it is firmly seated in the slot, then the cable may need replacement.
When making or receiving a phone call, your voice is too quiet for the other party to hear.
Insure that your microphone does not have obstructions. Clean the microphone hole off with a dry toothbrush or similar.
If there are no obstructions, the microphone is likely faulty. Replace the microphone.
When making or receiving a phone call, you cannot hear the other party very well.
Insure that your speaker does not have obstructions. Clean the speaker holes off with a dry toothbrush or similar.
If there are no obstructions, the speaker is likely faulty. Replace the speaker.