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Is this not the page you are looking for or is it a newer version of that model? Samsung Galaxy Tab 2 10.1 Repair

If this is the correct model https://shop.westerndigital.com/en-gb/products/external-drives/g-technology-g-drive-thunderbolt-3-hdd#0G05364 it goes up to 14TB. You may need a bios update but this is unclear.

Is there any blockages? Dirty filter? This is notorious for stopping my V7.

Non dual control. There is a cable fault or something has become detached or worn. Dual control. There will be a fault with the motor which drives the air direction flaps. Both means that someone will have to pull apart some of the dash to get to these control areas.

There can be numerous things. It may have been partitioned but not formatted? Has it been formatted on a linux system? Has it been tried on another system? Have you been using this before? Go to Conputer Management and click on Disk Management. If it tells you that the disk is Simple, Basic, NTFS it was formatted on a Windows machine. Does it say Primary Partition? If not, then it hasn’t been formatted and formatting will need to be done to make the disc usable.

As Prop Man said for the battery. Your water pump is worn also. Get it replaced because it that goes bang, I have no idea what damage that will do to the pulleys, belts or anything else.

It seems the best option for you is to try and source another ‘damaged’ unit and take parts off that. I do not see many parts for this phone anywhere.

Generally this is a sign of low or over-used oil. I would check the oil level and its color first. If you can do this, the trans oil should be a red color. If it is not, get it change ASAP.

The charge circuit may well be faulty. You may have to replace that and the battery just to be safe.

These batteries tend to flame and smoke when the plates touch. I have never heard of one exploding yet. Always keep yourself safe with Li-Ion batteries. They are evil. I doubt a repair shop will touch it. I would go outside and do it. Disconnect the battery making sure it is not glued to the shell and launch it. If it flames out, no biggy. Now connect your new one.