Blocking Xiaomi Redmi 9C Mi Account is one of the most common problems among owners of used smartphones of this model, and even after resetting the settings to the factory, the system may require you to enter a login and password from the previous Xiaomi account, which makes the device useless. 5 working methods of bypassing the lock, including the official Mi Unlock Tool, methods through the ADB/Fastboot, Alternative solutions for cases where standard approaches fail.
Itβs important to understand that Redmi 9C (codename angelican) is from Xiaomiβs budget lineup and its protection is different from flagship models. For example, there is no TEE (Trusted Execution Environment) module, which simplifies some unlocking methods. However, the manufacturer regularly updates the protection mechanisms, so the relevance of the methods depends on the version of MIUI (check in Settings β About phone).
If you bought a phone with your hands and the seller didn't untie your account, or you forgot your Mi Account, don't rush to bring the device to the service center. In 80% of cases, you can solve the problem yourself by following our instructions. But remember: some methods require unlocking the bootloader, which resets all data and can cancel the warranty.
1.The official way: Mi Unlock Tool by Xiaomi
The most legal method is to use the Mi Unlock Tool, developed by Xiaomi itself, which allows you to unlock Bootloader and reset your account, but with a number of restrictions:
- πΉ Requires binding the same Mi Account that locks the phone (if it is your account, but you forgot the password β restore it through the official website).
- πΉ You need to wait 72-168 hours after you link your account to your device (the rule was introduced by Xiaomi to combat theft).
- πΉ It only works on the original firmware. MIUI (Custom firmware is not supported).
- πΉ It requires a Windows PC and USB-cable (preferably original).
If the conditions are met, follow the instructions:
- Download Mi Unlock Tool (version no lower than 5.5.224.30).
- Install Xiaomi drivers for Fastboot (you can use the Mi Flash Tool).
- Turn off Redmi 9C, press Volume Down + Power to log into Fastboot.
- Connect your phone to your PC, launch the Mi Unlock Tool, and log in under the same account that blocks the device.
- Press Unlock and wait for the process to complete (usually 10-15 minutes).
β οΈ If Xiaomi shows a βCouldnβt unlockβ or βDevice not supportedβ error, then your Redmi is a good one. 9C Do not be tied to your account for long enough. Try trying again in 3-7 days.
Charge your phone at least 60%|Install Xiaomi drivers on PC|Download the latest version of the Mi Unlock Tool|Sign in to Mi Account on phone and PC|Connect the original USB-cable-->
2 Unlocking through ADB (without data loss)
The method is suitable if the phone is not locked on the password entry screen, but requires Mi Account data after reset.The essence of the method is to delete account files via ADB (Android Debug Bridge), This is the only way to bypass the lock without resetting data, but it does not work on all versions of MIUI (tested on MIUI 12.0.8-12.5.3).
You'll need:
- π§ Included debugging by USB (If the phone is unlocked, activate in Settings β The phone. β Version. MIUI (press 7 times) β Additionally. β For developers β Debugging by USB).
- π§ Established ADB-Drivers on PC (download in Android) SDK).
- π§ USB-data-couple.
Instructions:
adb shell
su
rm -rf /data/system/mi_account*
rm -rf /data/data/com.xiaomi.account/
rebootIf the su command is not working (no root rights), try the alternative:
adb shell
pm uninstall -k --user 0 com.xiaomi.account
pm clear com.xiaomi.account
rebootβ οΈ Attention: MIUI 13+ This method may not work because of the enhanced protection. If the lock is still locked after the restart, go to the method from Fastboot.
π‘
If USB debugging is disabled and your phone is locked, try connecting it to your PC and entering any combination on the lock screen. Sometimes this will activate temporary access to ADB (works on 1 in 10 devices).
3. Reset via Fastboot (with loss of data)
If ADB doesn't help, and Mi Unlock Tool is not available, you can reset Redmi 9C via Fastboot, which deletes all data, but is guaranteed to remove the Mi Account lock.
- π± Phone locked on password entry screen.
- π Previous ways didn't work.
- π§ You're ready for a full reflash.
Procedure:
- Download the Mi Flash Tool and the firmware for Redmi 9C (e.g. here). Select the Fastboot version (file with.tgz extension).
- Unpack the firmware in a folder without Cyrillic characters (for example, C:\MIUI\angelican).
- Turn off the phone, press Volume Down + Power to log into the Fastboot.
- Connect Redmi 9C to your PC, launch the Mi Flash Tool, select the firmware folder.
- Press Refresh, then Clean All (full reset) and Flash.
| MIUI version | Does the Fastboot reset work? | Notes |
|---|---|---|
| MIUI 12.0.1β12.0.8 | β Yes. | No more manipulation. |
| MIUI 12.5β13.0 | β οΈ Partially. | You may need to revert to an older firmware. |
| MIUI 14+ | β No. | You need to unlock Bootloader through Mi Unlock Tool. |
Once you flash it, it will boot up as new, without being tied to Mi Account. If the Mi Flash Tool gives you an anti-rollback error, you're trying to install a firmware that's too old. Download a newer version.
π‘
Fastboot reset is the most reliable way, but it erases all data, including photos and contacts. Always back up if you have access to your phone.
4. bypassing EDL Mode (for advanced users)
EDL (Emergency Download Mode) is a firmware emergency mode that allows you to overwrite system partitions bypassing locks, which works even on a locked Bootloader, but requires:
- π οΈ Special cable. EDL (Or the ability to sell resistors into your phone).
- π οΈ Mi Flash Pro or QFilm.
- π οΈ Firmware in.mbn format for Redmi 9C (search the forums 4PDA).
Step-by-step:
- Download and install the Qualcomm HS-USB QDLoader 9008 driver (for Redmi 9C on the Helio G35 chip).
- Connect the phone to the PC in EDL mode (you need to close contacts on the board or use a ready-made cable).
- Run Mi Flash Pro, select the firmware.mbn and press Flash.
- Wait until the process is completed (it can take 10-20 minutes).
β οΈ Attention: Incorrect actions in EDL They can permanently disable your phone ("brick"). If you are not sure about your skills, consult a specialist.
What if you canβt get into EDL?
5. Alternative methods (for specific cases)
If the standard methods didnβt help, try these options:
- π If you have a handheld phone, contact the seller and ask them to untie the account through the Xiaomi web interface:
Buy the unlock from official partners.
UnlockUnit
IMEI-Server
Back to the old firmware.
MIUI 11
Mi Account
Fastboot
For firmware rollback:
- Download the archive from MIUI 11 for Redmi 9C (e.g. V11.0.4.0.QCFMIXM).
- Sweat it through the Mi Flash Tool with the Clean All option.
- After download, reset through Settings β Additional β Restore and reset.
If none of these methods work, the last option is to replace the motherboard. 9C It costs about 3,000 to 5,000. β½, It is often cheaper to buy a new phone.
Frequent mistakes and their solutions
When you unlock Redmi 9C, users face typical problems.
| Mistake. | Reason. | Decision |
|---|---|---|
| "Couldn't Verify Device" by Mi Unlock Tool | The account is not tied to the 72+ hour device. | Wait 3-7 days or use another method. |
| "Anti-rollback check" in Mi Flash | Trying to install a firmware that is too old. | Download firmware no older than 2-3 versions of the current one. |
| Phone not visible on Fastboot | There are no drivers or faulty cables. | Install drivers manually through Device Manager. |
| ADB: device unauthorized | No confirmed debugging access on the phone. | Unlock your phone and confirm your USB connection. |
If you see a "This device is locked" error when trying to flash custom recovery (such as TWRP), it means that the Bootloader is locked. In this case, first unlock it through the Mi Unlock Tool.