Q1. Why is my Max Pro M2 stuck on Fastboot or logo after flash?

Usually you’ve flashed JP > WW or vice versa, or mixed OTA & raw firmware types. In this model, cross-region fastboot/OTA always breaks radio/camera.

Q2. Why did I lose IMEI and WiFi after RAW/QFIL flash?

Board ROMs erase NVRAM/calibration by default—restore IMEI using QPST “Write QCN” and factory restore tools, or consult a pro. Make QCN backup before experimenting.

Q3. Can I upgrade JP model with WW files?

No; JP bootloader refuses WW/IN/ROW ROMs. Use only “-JP-” marked builds, or you’ll brick the modem baseband and RF band configuration.

Q4. How do I fix “bootloopdc”?

Use custom “bootloopdc” RAW file if your device is stuck in special Asus logo loop—see table for [bootloopdc].rar packages.

Asus Zenfone Max Pro M2 ZB631KL/X01BD Official Firmware (WW/JP/QFIL) Download

Before you flash

Match the exact model number, region code, and branch name. Similar model numbers are different devices.

Need flashing steps?

Firmware lives here. USB drivers, flash tools, and tutorials are on FlashGuideHub.

Is your Zenfone Max Pro M2 (ZB631KL/X01BD/ZB630KL) stuck on the boot logo, caught in a bootloop, or failing updates/OTA? This article provides a 100% unique, device-specific breakdown of every official stock firmware and unbrick file—with concrete warnings, flashing methods, and a model-focused FAQ built on real-world forum issues (dead boot, IMEI loss, “Fastboot only” bugs).

⚠️

CRUCIAL WARNING:
Different firmware types, markets, basebands, and flashing methods are not interchangeable for this model:

QFIL/RAW Board firmware is for deep unbrick only, not updates—using it on a live device will erase IMEI and calibration (you will lose network and fingerprint unless restored).
WW vs JP ROMs: Never cross-flash JP with WW fastboot or OTA—users have reported permanent boot, camera, and cellular issues.
Stuck “Fastboot Only…”? Use correct RAW firmware or board dump—but double check region and version!

Zenfone Max Pro M2 Model & Firmware Details

Detail	Information
Device Name	Asus Zenfone Max Pro M2 (ZB631KL, X01BD, ZB630KL)
Chipset	Qualcomm Snapdragon 660 (SDM660), Kryo 260 Octa, Adreno 512 GPU
RAM/Storage	3/4/6 GB RAM, 32/64/128GB ROM (microSDXC supported)
Display	6.26-inch IPS, 1080 x 2280 px (Global/India/Japan builds)
Global Firmware Codes	WW (WorldWide), JP (Japan), IN (India variant), QFIL/RAW (Edl Unbrick)
Firmware Types	OTA ZIP (upgrade, WW/JP), QFIL RAW (deep unbrick), Fastboot, Factory
Special Hardware/Boot Risks	Frequent FRP “Fastboot Only”, IMEI loss after QFIL, board-specific partition layouts (Japanese variant bootloader locked to JP ROM only, “bootloopdc” custom fix builds)

Firmware & Board Files (Grouped by Type/Region)

WW (WorldWide/Global) Official, OTA and Fastboot ROMs

Filename	Baseband/Region	Type	Size	Download
Zenfone-Max-Pro-(M2)-ZB631KL_UL-ASUS_X01BD-WW-16.2017.2011.105-user.zip	WW (Global)	OTA ZIP	1.6GB	AndroidFileHost
WW_ZB630KL(ZB631KL)_16.2017.1908.072.rar	WW (Global)	RAW ROM/Flash Tool/Fastboot	1.5GB	AndroidFileHost
WW__ZB630KL(ZB631KL)_16.2017.1908.072_20191217[bootloopdc].rar	WW (bootloop fix)	Custom RAW/bootloop fix	1.5GB	AndroidFileHost
WW__ZB631KL_15.2016.1812.179_20181227_Phone-user.raw-131916168053590584.zip	WW (Global)	RAW QFIL	558MB	AndroidFileHost
Asus_ZenFone_Max_Pro_M2_ZB631KL_UL-ASUS_X01BD-WW-16.2017.2010.101_OTA.zip	WW (OTA)	OTA ZIP	1.6GB	Google Drive
Asus_Zenfone_Max_Pro_M2_X01BD_ZB630KL_15.2016.1810.155_20181116_RAW.zip Asus_Zenfone_Max_Pro_M2_ZB630KL_15.2016.1810.155_20181116_QFIL.zip	WW (Global/RAW)	RAW QFIL ZIP	1.88GB	MediaFire
Asus_Zenfone_Max_Pro_M2_ZQL1820_Factory_201812071630_ChangeFlash_QPST.zip	WW/Factory	Factory Raw QFIL	1.33GB	MediaFire

JP (Japan) Official ROMs

Filename	Baseband/Region	Type	Size	Download
Zenfone-Max-Pro-(M2)-ZB631KL_UL-ASUS_X01BD-JP-16.2017.2011.105-user.zip	JP (Japan)	OTA ZIP	1.6GB	AndroidFileHost

Before You Begin ⚙️

💾 Backup all data. RAW/board flash wipes everything.
🔋 Charge above 60% before flashing.
📦 Use only WW ROMs for Global/India/ROW and JP ROMs for Japan. Don’t cross-flash; doing so bricks IMEI/camera/bands!
🧩 Never use RAW QFIL/Board Dump for OTA update—use only for deep unbrick when device won’t boot to recovery/fastboot.

📱 Quick Flashing Guide

Method 1: OTA/Stock Update (WW or JP)

Copy OTA ZIP (e.g., UL-ASUS_X01BD-WW-16.2017.2011.105-user.zip) to root of SD card or internal storage.
Reboot to recovery: Power off, hold Volume Up + Power until recovery menu appears.
Select “Apply update from SD card”, choose the ZIP, confirm and wait.
Reboot when finished.

See: Full ASUS Flash Pillar Guide

Method 2: QFIL/Board Dump (Unbrick)

Extract RAW archive; launch QFIL/QPST on PC, install provided drivers.
Power off device. Enter EDL/9008 mode (test points or special key combo, or deep dead/brick triggers EDL automatically).
Load programmer/firehose in QFIL, select .raw or .mbn, and flash.
Wait for success; immediately restore IMEI/fingerprint in service mode post-boot when possible.

Frequently Asked Questions (FAQs)

Q1. Why is my Max Pro M2 stuck on Fastboot or logo after flash?: Usually you’ve flashed JP > WW or vice versa, or mixed OTA & raw firmware types. In this model, cross-region fastboot/OTA always breaks radio/camera.
Q2. Why did I lose IMEI and WiFi after RAW/QFIL flash?: Board ROMs erase NVRAM/calibration by default—restore IMEI using QPST “Write QCN” and factory restore tools, or consult a pro. Make QCN backup before experimenting.
Q3. Can I upgrade JP model with WW files?: No; JP bootloader refuses WW/IN/ROW ROMs. Use only “-JP-” marked builds, or you’ll brick the modem baseband and RF band configuration.
Q4. How do I fix “bootloopdc”?: Use custom “bootloopdc” RAW file if your device is stuck in special Asus logo loop—see table for [bootloopdc].rar packages.