what i would say is that even with a correct types of metal prying tools then it's still some degree of risk, and a bit tough task, but also certainly not outside the typical smartphones repair doctrines. and several of us have successfully removed it. although at least 1 guy reported chipping the corner of the glass (i didn't)
I have no doubt that you are among the skilled few who possesses the prying expertise to get the silly glass off. I have never repaired a phone nor did I ever want to (except when my note 4 broke, which I broke that screen too, but that's a story for another time). For the rest of us mere mortals, it's unconscionable to make the Aixun so hard to repair for the average person and diyer, who arguably, is the target market for it given its price category.
Anyways, today, I finally got around to doing some experiments to pinpoint the cause of the buzzing. I started by isolating the control board from everything else:
- power coming directly from the bench supply soldered to the power pins on the board
- wires soldered directly to the pcb and connected to the cartridge as it's held mid-air to take out any influence of poor connections from the handle
The result? The control board was buzzing on its own! I have to say though, it's a faint buzzing sound, but if you put your ear next to the PCB, certainly discernible.
At this point, I'm starting to suspect
all Aixun's buzz by design. And that most users don't really notice it because it is a really faint buzzing. But you would hear it if you put your ears close to the handle or the case, or when the room is quiet. I'm curious if someone with a "silent" Aixun can test this theory.
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