Fingerprint broken on Pro version - Xiaomi Redmi 3 Questions & Answers

Long story short. I broke the connector strip when I was replacing the back cover. On Aliexpress I can only find the fingerprint sensor for Note 3 Pro. The connector strip has a different shape but I might be able to connect it -- if I know that the sensor would be recognized by the Redmi 3 Pro board.
Has anyone tried this sensor on the 3 Pro? I wouldn't want to buy it just to find out that it doesn't work.

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Will Euro Touch Pro 2 battery cover fit on T-Mobile Touch Pro 2?

The reason I ask is because I personally prefer the aesthetics on the Euro Touch Pro 2. Also, I don't want that stupid flap sticking out on the side of my Touch Pro 2. The Euro Touch Pro 2 battery cover doesn't have the ugly flap. I dont swap 2 million SD cards on my phone anyway so all the flap does is get in the way. My T-Mobile Wing does that all day long. The flap for the MicroSD gets stuck or comes out when putting the Wing back into it's case or when I slide my hand on the side of the phone.
Yes, I know the only real way to tell is if you actually try it (I will get my chance August 12th. I have a friend with a Euro Touch Pro 2 so I will try the battery cover swap, then find somewhere online to buy a Euro Touch Pro 2 battery cover), but does anyone know more than just "dimensions" of the phone. Anything like actual locking points on the back of the T-Mobile Touch Pro 2, etc?
Well, discovered a solution on Ebay. Replace the entire casing for the USDM Touch Pro 2. Hopefully this works. Then I can get something close to the Euro Touch Pro 2, if not better. (Won't get confused for being an iPhone all the time!!!)

Q: How to ground the display/digitizer?

Hi!
I have broken the display on my Z2.
I have ordered a new one online and changed it. Soon I realized it's not working properly (ghost touches and unresponsive screen). After looking for a solution, I found out that this may be a grounding problem.
Since i saw, that the new display didn't come with adhesive covers for the chips on the flex cable, i have fitted them from the original display, but the problem still persists.
So how do I properly ground the display?
Does the bottom metal part of the display flex cable, have to touch the metal part of the frame? I suspect that sometimes it doesnt (new display didn't have the grey adhesive, the original had - but I can't remove it). Do I have to fix it with some kind of conducting adhesive?.
What about the top metal part of the display flex cable? Must it touch (ground) somwhere or it's not neccessary?.
Do I have to be carefull that some parts of the flex cable doesnt touch some other part of the phone?
BTW, I know the display isn't faulty because if I remove the back cover, sometimes i get perfect screen rensponse (maybe i ground it with my hand).
Thanks in advance.

Redmi Note 3 front glass broken

My redmi note 3 front glass was broken. Is it possible to change only digitizer without changing LCD? Coz I found only digitizer online which is cheap compared to entire assembly(LCD + Digitizer). I need help on this.

Repairs

I have a Redmi Note 3 Pro for about half a year and I have my screen broken and my back cover a bit beaten up. I know how to change my screen, LCD and bezel but I don't know how to change the back cover because of the fingerprint sensor. Does anybody know how to transfer the fingerprint sensor to the new housing? Thanks in advance.
There's supposed to be a little ribbon cable connecting the fpc to the housing, disconnect it and you should be able to connect that to your new housing.

Redmi note 4x replacement housing

Discovered my back cover is bent after taking my phone case off. tried to bend it back but now there are gaps where the buttons are. Still works fine I am just looking for a replacement back cover.
Any recommendations? I've looked on aliexpress not sure which ones are good or not, and some comes with "fingreprint flex cable" and "Sim card holder" they look dodge as, not sure if its meant to be inside the cover or outside. . . . regardless do i need one with fingerprint flex cable? is this somehow attached to the external covers?
Covers i am looking at https://www.aliexpress.com/item/for-Xiaomi-Redmi-Note-4-Global-Battery-Back-Cover-Rear-Back-Door-Housing-Card-Tray-Holder/32905160801.html?spm=2114.search0104.3.10.3749fb1ar1oAVk&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10068_10130_10547_319_317_10548_10696_453_10084_454_10083_10618_10307_537_536_10131_10132_10902_10133_10059_10884_10887_321_322_10103,searchweb201603_70,ppcSwitch_0&algo_expid=f3ba9a01-2a7e-4b0f-ae21-4f6e684df1cc-1&algo_pvid=f3ba9a01-2a7e-4b0f-ae21-4f6e684df1cc
If anyone knows where i can get genuine covers would be great as well.

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