Larry Chen

Have you tried opening up the bottom case to see if there are any screws for the screen hinge you can tighten up?

If you can take some measurements of the fan, perhaps it would be possible for you to buy a replacement fan meant for another machine that has similar dimensions to yours and swap it in that way. Usually the motor is permanently attached to the frame of the fan but you should be able to pull the blade assembly off. Perhaps what you can do, is find another fan with a similar blade size, that also has a metal plate backing, and perhaps cut the excess off the new one, cut the motor coil bit off the old metal plate, and somehow install the new metal plate onto the old one.

Hmm. If it's gotten wet as some commenters have noted, then maybe it's best to take it apart and clean/dry any traces of that out first. Try taking the battery off of it and then leaving it for a while, and then plug the battery back in and see if it works.

See if the blades turn freely first. If they do, try taking it apart and checking the thermal fuse of the motor which will probably be wrapped into the coils somewhere near where the wires go in. Unfortunately it's a bit fragile since the wires are thin, so you'll probably have to exercise caution.

Have you tried connecting the device to your computer, backing up all of your information, and performing a factory reset? It seems like half of your issues are coming from a software glitch which might be resolved by a reset.

The way I understand it is that when the phone is shaken the screen display goes funny. Usually when I have seen this it is the motherboard. Try swapping over that from the other and see if it helps.

I bought one of these broken from eBay a while ago. The problem was that one of the battery cells was bad. I found a different cell to replace it with, but your luck may vary.

Perhaps check JerryRigEverything's channel to see if he has anything on YouTube....

Perhaps you might start by removing the top panel; usually it will pop off the top and is clipped in. Under that, it should become more evident how to proceed further. perhaps take a picture for us once you get there?

Have you tried to reset the operating system back to the factory default? perhaps this can help.

This may be what you’re looking for but do confirm the size.

https://www.ebay.com/itm/2pcs-For-JBL-1-...

I’m not sure if theyd be the same diameter but in general I would suggest searching ebay for “15W full range” and looking to find one with the same measurements that you might be able to fit in there. Might want to change em as a set.

Main thing to watch out for is that you seal the speakers up against the case well. Perhaps some glue of some sorts may be of help.

someone above noticed that there was some buzzing caused by a mispositioned magnet. May be worth checking out.

There seems to be minimal to no heatsinking for the processor, compared to other devices with a similar chip.

The thermal engineering looks pretty bad when compared to Samsung's recent products or a lot of other devices.... I wonder whether it throttles.

The mystery component looks more like an antenna to me than an inductor....

Unfortunately I don't have this thing anymore, but if you look up the official specs, then go by the proportions on-screen, you can probably get a decent idea.

Perhaps open it up and then use a multimeter or some other speakers to see if you're getting any output from the amplifier? Sometimes the speaker drivers are damaged by dropping.

It looks to me like the heat is mostly going to the battery... I wonder why they couldn't have added at least a heatsink to the second heatpipe so it at least does something?

It would seem like this design would cause the battery to heat up considerably, which I can't imagine being too good for it. Considering how how these things get, it would appear that this would only cause the battery to have a shorter lifetime and make a difficult replacement come sooner.