I have been in the cell phone repair business for about 8 years now. I do modular type repairs mostly, but am not afraid to break out the old soldering iron and heat gun for the more sophisticated repairs.
"My volume button is going into my phone and is stuck"に関する回答your best bet is to grab some small metal flat too to try and slide it into the housing where the buttons are. You will then try to pull the buttons back out or see if there is any metal that may be obstructing the button from coming back out. With that model, you should be able to heat the phone using a similar method to the galaxy s5 and separate the display from the frame. This would allow you to get a close up look at the issue. But if you are not well versed in phone repair, this can be a dangerous method of resolution.
"Dryer Thumps and Stops Intermittently During Cycles"に関する回答I feel that this may be a motor issue. there is either something stuck in there that is getting caught and spit back out, or there is a failure in the motor. I dont thing this would be a control panel issue, or a belt issue. or it would not be intermittent. But unfortunately you would probably pay someone a bunch of money to do this with no guarantee of repair. If you can find a DIFFERENT repair gent to look at it and maybe give an estimate of repair, you could probably find out exactly what is wrong for free.
"Replaced my battery and now phone wont turn on"に関する回答I have experienced this issue with several devices that I have repaired. In those cases, it is almost always a bad battery. EVEN IF ITS NEW. If your old battery would turn on the phone, you should attempt to put it back in and power on your device. If it did not, then I hate to say it, but you may just want to send that one back and order another to attempt fix. If the old battery DID turn it on before and DOES NOT now, then you more than likely fried a connection somehow. If this is the case, the device would most likely be repairable. I would also urge you to use a static mat or anti static gloves in the future during your repairs if you do not already.
"Remove iCloud account from phone"に関する回答without your friends icloud account and password, there is no REASONABLE way to remove the account to make the device usable again. If you still have contact with that friend, you should ask them to remove it.