[Xiaomi Redmi 4X Guides, News, & Discussion] solim:
This thread could be a collection of TWRP flashable firmwares for Redmi 4X.

Here I share following firmwares. Try what works best for you.

Firmwares from stable roms:

- Marshmallow firmware from MIUI ROM 8.2.9.0 MAMMIEA HM4XGlobal with baseband V042

https://www.androidfilehost.com/?fid=673791459329052182

- Marshmallow firmware from MIUI ROM 8.2.10.0 MAMMIEA HM4XGlobal with baseband V046

https://www.androidfilehost.com/?fid=817906626617946378

- Marshmallow firmware from MIUI ROM 8.5.2.0 MAMMIED HM4XGlobal with baseband V051

https://www.androidfilehost.com/?fid=889964283620755447

- Nougat firmware from MIUI ROM 8.5.4.0 NAMMIED HM4XGlobal with baseband V023

https://www.androidfilehost.com/?fid=962021903579489792

- Nougat firmware from MIUI ROM 9.1.1.0 NAMMIEI HM4XGlobal with baseband V025

https://www.androidfilehost.com/?fid=673791459329062811

- Nougat firmware from MIUI ROM 9.2.3.0 NAMMIEK HM4XGlobal with baseband V028

https://www.androidfilehost.com/?fid=890129502657579040

- Nougat firmware from MIUI ROM 9.2.4.0 NAMMIEK HM4XGlobal with baseband V032

https://www.androidfilehost.com/?fid=890129502657586727

- Nougat firmware from MIUI ROM 9.2.5.0 NAMMIEK HM4XGlobal with baseband V032_PA

https://www.androidfilehost.com/?fid=746010030569957525

- Nougat firmware from MIUI ROM 9.5.4.0 NAMMIFA HM4XGlobal with baseband V034

https://www.androidfilehost.com/?fid=962187416754476680

- Nougat firmware from MIUI ROM 9.5.5.0 NAMMIFA HM4XGlobal with baseband V037_PA

https://www.androidfilehost.com/?fid=674106145207487820

- Nougat firmware from MIUI ROM 9.6.2.0 NAMMIFD HM4XGlobal with baseband V042

https://www.androidfilehost.com/?fid=1322778262903980059

Firmwares from developer roms:

- Nougat firmware from MIUI ROM 7.7.7 HM4XChina with baseband V014

https://www.androidfilehost.com/?fid=673791459329056191

- Nougat firmware from MIUI ROM 7.7.20 HM4XChina with baseband V016

https://www.androidfilehost.com/?fid=817906626617941482

- Nougat firmware from MIUI ROM 7.9.7 HM4XGlobal with baseband V020

https://www.androidfilehost.com/?fid=817906626617937484

- Nougat firmware from MIUI ROM 7.9.22 HM4XGlobal with baseband V023

https://www.androidfilehost.com/?fid=962021903579482128

- Nougat firmware from MIUI ROM 7.10.12 HM4XGlobal with baseband V024

https://www.androidfilehost.com/?fid=745849072291680759

- Nougat firmware from MIUI ROM 7.10.19 HM4XGlobal with baseband V025

https://www.androidfilehost.com/?fid=817906626617940395

- Nougat firmware from MIUI ROM 7.11.2 HM4XChina with baseband V025

https://www.androidfilehost.com/?fid=889964283620763313

With following firmwares the boot into TWRP might not work on custom rom's advanced reboot menu. Check if the rom dev fixed it.

- Nougat firmware from MIUI ROM 7.11.6 HM4XGlobal with baseband V025

https://www.androidfilehost.com/?fid=962021903579493866

- Nougat firmware from MIUI ROM 7.11.16 HM4XGlobal with baseband V026

https://www.androidfilehost.com/?fid=889964283620767542

With following firmwares the boot into TWRP works on aex advanced reboot menu and pano01 kernel. Check if it works with other custom roms and/or kernels.

- Nougat firmware from MIUI ROM 7.12.8 HM4XGlobal with baseband V027

https://www.androidfilehost.com/?fid=673791459329066255

- Nougat firmware from MIUI ROM 8.1.4 HM4XGlobal with baseband V028

https://www.androidfilehost.com/?fid=673791459329071645

- Nougat firmware from MIUI ROM 8.1.18 HM4XGlobal with baseband V030

https://www.androidfilehost.com/?fid=962187416754455089

- Nougat firmware from MIUI ROM 8.1.25 HM4XGlobal with baseband V031

https://www.androidfilehost.com/?fid=746010030569949816

- Nougat firmware from MIUI ROM 8.2.8 HM4XGlobal with baseband V032

https://www.androidfilehost.com/?fid=673956719939824198

- Nougat firmware from MIUI ROM 8.3.1 HM4XGlobal with baseband V033

https://www.androidfilehost.com/?fid=673956719939824199

- Nougat firmware from MIUI ROM 8.3.22 HM4XGlobal with baseband V034

https://www.androidfilehost.com/?fid=673956719939833677

- Nougat firmware from MIUI ROM 8.4.19 HM4XGlobal with baseband V035

https://www.androidfilehost.com/?fid=962187416754476682

- Nougat firmware from MIUI ROM 8.5.17 HM4XGlobal with baseband V037_PA

https://www.androidfilehost.com/?fid=746163614322265427

- Nougat firmware from MIUI ROM 8.7.26 HM4XGlobal with baseband V042

https://www.androidfilehost.com/?fid=1322778262903980066