Xiaomi Redmi 4A is one of the most popular budget smartphones, but even it is not immune from turning into a βbrickβ after a failed firmware, reset settings or experiments with unlocking the bootloader. If your device stopped turning on, got stuck on the Mi logo, or does not respond to the power button at all, do not rush to carry it into the service. In 80% of cases, the device can be restored yourself, even without a soldering iron and special equipment.
In this article, we will discuss all the current ways to resuscitate Redmi 4A (codename rolex), including recovery via Fastboot, EDL mode, and bypassing the locking of Mi Account. Particular attention will be paid to typical errors (for example, Invalid image or Anti-rollback check fail) and how to fix them. If you have never flashed a smartphone before, do not worry: the instructions are adapted for beginners, with step-by-step screenshots and an explanation of each action.
Before you start, check for the symptoms of your deviceβs βbrickingβ:
- π΄ The smartphone is not on, the screen is black, there is no reaction to charging.
- π Hovers on the Mi logo or in the infinite boot.li>
- π« Not computer-defined (not visible in Device Manager).
- π Requires a password from Mi Account after resetting settings.
- β‘ Turns on but immediately turns off (cyclic reboot).
If one of these things is the same, you're in the right place, and we start by diagnosing the problem and preparing the tools.
1.Diagnostics problem: why did Redmi 4A become a "brick"?
Before you can restore a device, it's important to understand the cause of the failure, and the choice of the method of resuscitation depends on it.
1. Failed firmware through Recovery or Fastboot. Most often occurs when:
- π± Use firmware not for your model (e.g., for Redmi 4 Pro instead of 4A).
- π Interrupting the firmware process (cable pulled out, battery dead).
- π Firmware over a custom Recovery (TWRP) without first cleaning the partitions.
2. Mi Account lock after reset. Xiaomi links the device to the manufacturer's account. If you made Wipe Data on TWRP or via Fastboot, the phone may require you to enter a login/password from the previous account. This is not a brick in the classic sense, but you can't use the device without Mi Account data.
3. Damage to boot boot boot boot or partition. Symptoms: the smartphone vibrates when you press the power button, but the screen remains black.
4: Hardware failure: If the phone doesn't respond to charging, it's not detected by the computer even in EDL mode, and there's no software manipulation, and the problem could be the power or memory controller (eMMC), which is a repair.
How to distinguish a software βbrickβ from hardware?
2.Recovery preparation: what will be needed?
To successfully resuscitate Redmi 4A, prepare in advance:
- π» Windows PC 7/10/11 (32 or 64-bit). Mac/Linux may have problems with Qualcomm drivers.
- π Original USB- cable (preferably the one that came with it) cheap cables may not be transmitting data.
- π Charged battery (minimum 30%) If the phone doesn't turn on, hold it charging for 15-20 minutes before starting.
- π Tools: Official firmware for Redmi 4A (Stable or Developer version); Mi Flash Tool (for Fastboot firmware); EDL- Drivers and QFil (for emergency firmware); Mi Unlock Tool (if you need to unlock the bootloader).
Important! Download firmware and tools only from official sources (Xiaomi, XDA Developers), files from torrents or dubious sites may contain viruses or be corrupted.
Download the firmware for the rolex model (Redmi 4A) |
Install Qualcomm and Mi Flash Tool| drivers
Connect the cable to the rear USB- port of the PC (front ports may not provide enough power) |
Disable the antivirus (it can block EDL-drivers)|
Check that the battery is charged (plug in to charge for 10-15 minutes)-->
Method 1: Fastboot Recovery (if the phone is identified)
If Redmi 4A boots into Fastboot mode (a black screen labeled Fastboot and a flashing red LED), the easiest way to recover is through the Mi Flash Tool.
Step-by-step:
- Boot to Fastboot: Turn off the phone (if it's on, press the power button for 10-15 seconds). Press Volume down + Power and hold for 5-7 seconds until the Fastboot screen appears.
- Connect to your PC: Connect your phone to your computer with a cable. Wait for the drivers to install (Android Bootloader Interface should be available in Device Manager).
- Sweep through the official firmware: Unpack the downloaded firmware (a file with the extension.tgz) into a folder without Cyrillic. Open Mi Flash Tool, press Select and specify the path to the firmware folder. At the bottom, select Clean all (if you need to save data) or Clean all and lock (full reset + lock the bootloader). Press Refresh - your device should appear in the list. Click Flash and wait for the end (3-5 minutes).
If the process is successful, the phone will automatically restart. The first turn on can take up to 10 minutes - don't interrupt it!
1. reconnect the cable to another USB-port (preferably) USB 2.0).
2. Run the Mi Flash Tool on behalf of the administrator.
3. Install drivers manually through Device Manager (download here).-->
4 Method 2: Firmware through EDL (if Fastboot is not available)
EDL (Emergency Download Mode) is the βlast frontierβ for Redmi 4A recovery when other methods fail. In this mode, the phone connects to the PC as a Qualcomm 9008, and the firmware goes directly to the deviceβs memory, bypassing the bootloader.
β οΈ Warning: Firmware through EDL resets all data without recovery. There is also a risk of damaging eMMC memory when the USB- connection is unstable.
- The phone doesn't load into Fastboot.
- It is not determined by the computer in normal mode.
- The screen is black, but the device vibrates when connected to the charger.
Instructions:
- Install EDL- Drivers: Download Qualcomm drivers and install them manually. Open Device Manager, find Qualcomm HS-USB QDLoader 9008 (may appear as an unknown device). Update the driver by specifying the path to the downloaded files.
- Run the Mi Flash Tool in EDL mode: In the Mi Flash Tool, select firmware (a folder with.mbn files). At the bottom, instead of Fastboot, select EDL. Connect the phone turned off to your PC by clamping Volume Up + Volume Down (for forced EDL login).
- Start firmware: If the device is identified as COM-port, press Flash. wait until the end (the process can take up to 10 minutes).
Critical information: If the Mi Flash Tool gives you a Sahara Communication Failed or Firehose Match Fail error, then the firmware version is not compatible with your device.
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Firmware through EDL is the most reliable way to recover, but requires strict adherence to instructions, and errors at this stage can lead to permanent damage to the device's memory.
5. Method 3: Bypassing the Mi Account lock after a reset
If Redmi 4A is enabled but requires data from a Mi Account you don't remember (or the phone was bought with your hands), there are several ways to bypass lock.Caution: These techniques may violate Xiaomi's policies, so use them at your own risk.
Method 1: Test menu (for older versions of MIUI)
- On the lock screen, enter any password 3 times until the Try Again Later message appears.
- Can't you access this account? β Can't access this account?
- Enter 1234567890 in the phone field and click Next.
- If a menu with a choice of country appears, then the lock is reset.
Method 2: Fastboot Firmware with Mi Account Deletion
- Download a special firmware without linking to the account.
- Sweat it through the Mi Flash Tool in Clean All mode.
- After the reboot, the lock will be removed, but all data will be deleted.
Method 3: Appealing for Xiaomi
If the phone has been officially purchased, you can contact the service center with a check. Xiaomi can unlock the serial number (but it takes up to 2 weeks).
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If you buy a Redmi 4A handheld, always check if it is tied to your Mi Account. Go to Settings β Mi Account β Devices. If your phone isnβt yours, ask the seller to untie it from your account before you buy it!
6 Method 4: Recovery through TWRP (if custom Recovery is installed)
If your Redmi 4A has previously been installed with TWRP, but after manipulating the firmware, the phone stopped booting, you can try to restore it through this recavator.
Instructions:
- Boot to TWRP: Turn off the phone. Press Volume up + Power and hold until the TWRP logo appears.
- Reset: Go to Wipe β Advanced Wipe. Mark Dalvik, Cache, Data, System. Swipe for confirmation.
- Sweep through the official firmware: Download the firmware for Redmi 4A (.zip format) and place it on a microSD or in your phone's memory. In TWRP, select Install, specify the firmware file, and confirm the installation.
If TWRP doesn't start or if it gives you an Unable to mount /data error, then the data partition is corrupted, and only the firmware through Fastboot or EDL will help.
7.Typical errors and their solutions
When you restore Redmi 4A, users often encounter errors, and consider the most common ways to fix them:
| Mistake. | Reason. | Decision |
|---|---|---|
| Invalid image in Fastboot | The firmware is not for your model or is damaged. | Download the official firmware for rolex from the Xiaomi website. |
| Anti-rollback check fail | Try to stitch the old version of MIUI over the new one. | Use the same or newer version of the firmware. |
| Device not found in Mi Flash Tool | Drivers are not installed or the cable is faulty. | Check the connection, install the drivers manually. |
| Phone is not charging, screen is black | The power controller or battery is damaged. | Try charging from another power supply. If it doesn't work, bring it to the service. |
| Sahara Communication Failed at EDL | Incompatibility of the firmware with the loader version. | Use the firmware with the same VBMETA number. |
β οΈ Warning: If the phone turns on after firmware is running through EDL but immediately turns off (cyclic reboot), then the modem partition is damaged.
1. In QFil, select the files:
- Programmer: prog_emmc_firehose_8917.mbn
- Modem: NON-HLOS.bin
- FSG: fsg.mbn
2. press Download and wait until it is completed.8.When to contact the service center?
Not all bricking cases can be solved software. Contact the service if:
- π The phone is not defined by the computer in any mode (Fastboot, EDL).
- π₯ There are signs of physical damage (bloated battery, burning smell).
- πΎ The firmware through EDL ends with a Storage read failure (eMMC memory damaged).
- π Once the firmware is in place, the phone requires a Mi Account, but you don't know the previous owner's details.
The cost of repairing Redmi 4A in the service:
- Replacement of the eMMC chip: ~3000β5000 β½.
- Firmware through boxing (UFi, EasyJTAG): ~1500β2500 β½.
- Unlock Mi Account (officially): ~1000 β½ (if you have a check).
Tip: Try flashing your phone through EDL with an authorized account before you visit the service. Some services charge even for diagnostics, so trying to recover yourself will save time and money.
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If the phone doesn't respond to buttons and isn't detected by a PC, don't try to disassemble it yourself. Damage to plumes or chips can make repair impossible.