Not sure how or why it would do that or how you're going about sending them. If I were wanting to transfer photos from my phone to my computer I would just connect it via USB and transfer them over. If you're trying to send it to someone else, I would just send them via email and they'd be able to retrieve them from there on their computer.
Battery Cover Speaker Bracket Assembly Back Housing NFC/Wireless charging antenna Top Antenna Battery Headphone Jack Vibrator Earpiece Sensor FPCB Front Camera Rear Camera Front Assembly - Consists of the LCD, I/O board, and Front Housing. It all depends on how it's bought, you can get them pre-assembled, or by individual part. This list excludes any adhesive tapes that may be needed if they aren't on the parts already.
I would try reconnecting the LCD connector. I would also clean the connector with a brush and some isopropyl alcohol on both the board and the LCD. I would do that first since it's free to do but if not, I'm not sure what else to say apart from the LCD being bad or there being a board problem, that would take troubleshooting to figure out.
Not sure if you're looking to do any repairing yourself, but I would try taking a bush and some isopropyl alcohol and scrubbing the connector for the screen both on the board and the screen before going forward with a screen replacement. If that fails, do a screen replacement.
I see these happen at work occasionally and none of us know what really causes them to happen, sometimes they show up right away, sometimes they show up later. For us they appear to look like a purple "liquid" almost in the corners of the display rather than dots like that. The display was probably just a bad egg. I'd have it exchanged and tell them it was defective. I would also explain to your customer that you had received a defective LCD and that you'd have it replaced, and personally I wouldn't charge them for it as it's not their fault. And swapping a screen on one of them doesn't take that long anyways. If/when you do that and have a new one, just for the sake of being careful I would make sure you don't have any glass particles, or anything of the sort laying in the area that the screen lays in. And on the board I would take some isopropyl alcohol and a brush and make sure that the contacts on the connector on the board and the screen are clean. That won't fix the LCD you have now, but it may...
First off, if you have a display and the touch screen works then the screen is all good. Just to be clear, do they still functionally work when touched? Or do they just not light up anymore? Or both? Now, there is the small chance you left some adhesive plastics over the bottom of the glass the screen is attached to not allowing the light from the soft keys to shine through the glass. You could have also potentially tore or damaged the soft keys themselves when removing the old screen. I would be very careful and just remove the screen and see what's up, even post pictures if you want. I doubt you have a press to press cellphones with, so taking the stuff back apart should be easy, just be very careful and take your time when removing the screen again. When you take the screen back off you're going to notice two thing flaps on either side at the bottom that wrap around the housing and are attached to a PCB board at the bottom of the phone, where the USB port is. If you tore them, then you'll have to...
For most all Samsung models the WiFi and Bluetooth share the same chip. This chip is generally located right above where the SIM/SD slot is located. I'm not exactly sure how damaging the slot would have done anything to that chip unless you tried changing the slot yourself and fried the chip that handles the WiFi. I've personally never fixed any of these due to the chip being epoxied in, at work they tell us just to trash phones with this failure. But whether or not a shop would have the ability to fix that, who knows, more power to them if they can. For starters I would try a factor data reset on the phone and/or re-flashing the phone's software. It's a small chance, but it's worth taking before paying anybody. And if you have to take it somewhere to get it fixed, just know that this phone is quite old, it might not even be worth fixing anymore. For what they'd charge you, you could almost go out and buy another one.
By not charging after 1 minute do you mean that it doesn't charge as in the battery percentage doesn't go up? Or do you mean that it's not detecting that a charger is even in the USB port? Also, if you could, try plugging it in and wiggling the USB connector around inside the port a little bit, if it connects and disconnects every time you move it around then your port is probably damaged from being used so many time, it's just from usage. Take a look inside if you can and see if it's messed up. If that's the case then you'll need to take it to a repair place to have it fixed unless you know how to solder because on this model the USB port is soldered onto the main board. If it isn't damaged and wiggling it around doesn't do anything then I would try a factory reset and if that doesn't work I would try flashing it, if that fails then I would send it in for a repair because a chip might need to be re-soldered.
For the S-pen issue. That sounds like an LCD failure. The S-pen wouldn't work at all on the screen if it were the S-pen. As for the soft keys at the bottom, make sure that the bottom PCB is connected properly and that you don't have power saving mode turned on. Also try a factory reset and if that doesn't work try flashing it. If that still doesn't work then it might be a bad PCB at the bottom there. You possibly damaged the buttons when removing the LCD. It happens all the time for me at work.
Are you using a custom firmware? If so that could possibly do it. Other than that if it isn't turning on and you've tried a factory reset and you've re-flashed the phone then it could possibly be a chip in the phone that either needs re-soldered or replaced. Might be best to have a repair shop look at it. Same goes with the bluetooth. Wifi and bluetooth commonly share a chip inside the phone in Samsung phones.