The Mobiistar E Selfie is a selfie‑focused Android smartphone built on the MediaTek MT6739 platform with a 6‑inch HD+ IPS display, 2 GB RAM, 16 GB storage, and Android 7.1.1 Nougat out of the box. This model is often used as a primary social and media phone, so failed OTAs, storage saturation, and root or modding attempts can easily lead to bootloops, stuck logo, or unstable performance.
Flashing the correct stock firmware package (Mobiistar_E_Selfie_MT6739_20180307_7.1.1.zip) can help recover from software corruption, restore system stability after experiments with custom software, and resolve many soft‑brick scenarios, though it cannot guarantee a fix in every case.
Mobiistar E Selfie Firmware Details
| Field | Details |
|---|---|
| Device Name | Mobiistar E Selfie (selfie‑centric 6‑inch Android smartphone) |
| Model Identifier | E Selfie with 2 GB RAM and 16 GB internal storage (expandable via microSD) |
| Codename | MT6739‑based E Selfie line, referenced in firmware as Mobiistar_E_Selfie_MT6739_20180307_7.1.1 |
| Chipset / Platform | MediaTek MT6739, quad‑core ARM Cortex‑A53 CPU, PowerVR GE8100 GPU, 64‑bit SoC |
| Launch Android Version | Android 7.1.1 Nougat |
| Current Firmware Line | Stock Android 7.1.1 Nougat ROM line, early 2018 build dated 2018‑03‑07 (20180307) |
| Typical File Size Range | Approx. 1.2–1.4 GB compressed for full MT6739 SP Flash Tool ROMs; this package is about 1.35 GB. |
| Firmware Type | Scatter‑based stock ROM for SP Flash Tool (MT6739 platform, full partition images) |
| Flashing Tool | SP Flash Tool (Smart Phone Flash Tool) for MediaTek devices |
| Bootloader Requirement | Flashes over the MTK preloader interface; typically works with the standard locked bootloader and does not require fastboot OEM unlock for stock restores. |
| Region / Branch Notes | Generic E Selfie MT6739 branch; not interchangeable with Mobiistar E1 Selfie IN V1.13/V1.14 builds, which target a different model and firmware line. |
⚠️ Flashing Risks & Disclaimer
Flashing this model has specific risks because the Mobiistar E Selfie relies on MT6739‑specific drivers for its 6‑inch display, front camera stack, and LTE modem configuration. Using firmware meant for the E1 Selfie or other MT6739 phones can result in boot failure, non‑functional cameras, mismatched display timing, or loss of 4G connectivity.
On MT6739 devices, SP Flash Tool options like “Format all + Download” can erase NVRAM and IMEI, causing “invalid IMEI” messages and loss of network until those values are restored with appropriate tools. Any interruption while flashing preloader or boot partitions (for example, due to a loose cable) may leave the phone in a deep soft‑brick that requires careful reflashing and driver setup.
The firmware package referenced here is provided solely to restore original software on the Mobiistar E Selfie for legitimate owners of this phone. All ROM images, trademarks, and related assets remain the property of their respective rights holders, and no modification, reverse engineering, or redistribution of copyrighted content is implied or endorsed.
Download Official Firmware for Mobiistar E Selfie
This package is an original stock ROM mirrored for preservation, as the manufacturer no longer offers public downloads for this exact MT6739 20180307 build.
| Region / Variant | Filename | Build / Version | Android / Firmware Version | File Type | Build Date | File Size | Download Link |
|---|---|---|---|---|---|---|---|
| Mobiistar E Selfie (MT6739) | Mobiistar_E_Selfie_MT6739_20180307_7.1.1.zip | Mobiistar_E_Selfie_MT6739_20180307_7.1.1 stock build | Android 7.1.1 Nougat factory ROM for Mobiistar E Selfie | Compressed SP Flash Tool scatter package (.zip; includes MT6739 scatter and images) | 07 March 2018 (20180307 branch) | ≈ 1.35 GB (compressed archive) | Download E Selfie stock ROM (MediaFire mirror) |
Flashing Requirements
- PC & Operating System: Windows PC (Windows 7 or newer) with administrator rights to install MediaTek USB VCOM drivers for the E Selfie.
- Drivers & Tools: MediaTek USB VCOM/Preloader drivers and a compatible SP Flash Tool release that supports MT6739 devices.
- Correct Firmware Package: Use only the Mobiistar_E_Selfie_MT6739_20180307_7.1.1 ROM for this model; do not flash E1 Selfie IN V1.13/V1.14 or generic MT6739 firmware due to hardware and partition differences.
- Bootloader & Flash Mode: Standard locked bootloader is normally sufficient; flashing is done with the device powered off using the MTK preloader interface, not via fastboot.
- Battery & Cable: Charge the phone to at least 40–50% and use a stable USB cable and port to reduce the chance of disconnections during flashing.
- Backup & Data Loss: Full firmware operations such as “Firmware Upgrade” or “Format all + Download” can wipe apps, settings, internal storage data, and NVRAM; important files and original IMEI should be backed up where possible.
- Device Verification: Confirm that the phone is a Mobiistar E Selfie with MT6739 chipset, 6‑inch display, 2 GB RAM, and 16 GB storage, rather than the E1 Selfie, before flashing any ROM.
How to Flash the Firmware
- Download and extract the E Selfie ROM: Download the Mobiistar_E_Selfie_MT6739_20180307_7.1.1.zip archive and extract it on the PC to access the MT6739 scatter file, partition images, and any bundled resources.
- Install MTK drivers and SP Flash Tool: Install MediaTek USB VCOM drivers, then download and extract SP Flash Tool and run the executable (flash_tool.exe) with administrator privileges on Windows.
- Load the MT6739 scatter configuration: In SP Flash Tool, open the “Download” tab and select the MT6739 scatter file from the extracted firmware folder, verifying that preloader, boot, system, recovery, and other partitions are correctly mapped for the Mobiistar E Selfie build.
- Connect the powered‑off device: With the phone completely powered off, click “Download” (or “Firmware Upgrade” if performing a full restore) in SP Flash Tool, then connect the E Selfie via USB so the MT6739 preloader interface is detected and flashing can proceed.
- Wait for first boot and verify functions: When SP Flash Tool reports success, disconnect the phone and power it on; the first Android 7.1.1 boot on this MT6739 device can take several minutes, after which display, front camera, SIM/network, and basic apps should be checked before restoring personal data.
For a detailed walkthrough of SP Flash Tool with MediaTek firmware, see: SP Flash Tool Mediatek firmware flashing guide.
Frequently Asked Questions (FAQs)
Is this firmware only for the Mobiistar E Selfie, not the E1 Selfie?
Yes. The 20180307 7.1.1 package targets the E Selfie MT6739 model; the E1 Selfie uses different IN V1.13/V1.14 Oreo builds and should not be flashed with this ROM.
Can this ROM fix a Mobiistar E Selfie stuck on the boot logo after a failed update?
A full reinstall of the correct stock firmware via SP Flash Tool can often recover devices stuck on the logo after failed OTAs or modifications, provided internal storage and other hardware are still functional.
Will flashing this firmware erase my photos and apps?
Operations like “Firmware Upgrade” or “Format all + Download” usually wipe user data and may reset NVRAM, so personal files should be backed up and important IMEI information recorded before flashing.
Why does the E Selfie sometimes lose IMEI after flashing?
If the NVRAM partition is formatted or overwritten during SP Flash Tool operations, IMEI and radio calibration for the MT6739 modem can be erased, causing “no service” until repaired with appropriate tools.
Is bootloader unlocking required to flash this stock ROM?
No. Stock firmware for this device family is normally installed via the MTK preloader interface with a locked bootloader, so fastboot OEM unlock is not usually required.
Can this build be used to downgrade from a later E Selfie update?
The 20180307 package can be used to move back to this early Nougat build if later software causes instability, but a clean flash is recommended to avoid mismatched partition contents.
What SP Flash Tool errors are common when flashing the E Selfie?
Users most often encounter preloader connection issues from missing drivers, scatter mismatches when selecting E1 Selfie firmware by mistake, and checksum errors if the zip download was corrupted, all of which should be addressed before retrying.
