Hi Friend, 
this is Lola from Bizbee, very Professional Supplier with 10 years experiences for mobile phone repair parts and accessories :D

Warm welcome join our Repair Community: www.bizbee.com, please write my name Lola or Agent ID 100030A1, i will update your professional repair Expertise one time every week :) Thanks in adavnce !
Welcome Join Repair Community
If you replace 8G, 8P and iPhone X screens, did you find, after replacing, there exits no True Tone Function? 
Here is tool that can fix this issue:

JC V1 programmer is the solution for the Proximity Light Sensor|True Tone Display|Multi Touch|Vibrator compatible issues of replacement parts since ios 11 upgrade.

Another JC B1 Tool Battery Tester: Not only test the battey, but also read and write the original data from Original battery to the replaced battery (Specially for iPhone XS, XS Max)

Bizbee NCC Fit or NCC Incell 8G and 8P, iPhone X, XR, XS, XS Max will be with True tone function through JC V1 Tool

Warm welcome to contact me for the vedio to confirm (WhatsApp/Wechat: 008618688998329)

Here is the latest prices for iPhone X Series Incell quality:
39.24$-------iPhone X  
43.95$-------iPhone XS  
38.46$-------iPhone XR 
111.45$------iPhone XS Max

If you registered an account on our online store, please write my name Lola, it is very important that i can see your account and offer you best service :D Thanks in advance

Best Regards
Lola Wong
Web: www.bizbee.com
Tel: +(86) 755 2376 3769 
Lola Wong (Sales Manager)

Wechat/Whatsapp: +8618688998329
Skype: lola@bizbee.com
Facebook: https://www.facebook.com/Bizbeelola