C idea CM840 firmware (flash file) Download
Donwload Tab
| Product Name | C idea CM840 |
| CPU Model | Mediatek CPU MT6592 |
| Android Version | Android Lollipop 5.1 |
| Firmware Versions | Factory Stock Rom |
| Software Versions | V1.0.3 |
| Download Link | C idea CM840 Tab 5.1 |
| Password | gsm-flash.com |
| Flashtool Link (use latest release) | Use Latest SP Flashtool |
| Drivers Download Link | MTK Drivers |
| Flash Tutorial | Yes |
| FRP Bypass Tutorial | Yes |
| Boxes & Dongle support | Infinity box, Octoplus, Nck Dongle |
| Technical Features (fiche technique) | Not available |
Important Note: If you find several versions, and you are confuse which version to use, just choose one, flash it without bootloader (uncheck bootloader from spflashtool partitions list), if the first one did not do the work, go to the next version.
Knowledge bases:
Why you need to install stock rom?
You need this firmware/stock rom if you have encountered this kind of problem in your Smartphone Listed Below:
Hang on logo / Rebooting / Bootloop & Dead boot after a wrong software / Virus & Sexual Apps / System crashing
Hardware or software problem (Emmc problem)??
- What is Emmc problem? also called read mode only, it means that your internal memory doesn’t accept command, so the phone stay on the same condition after a install stock rom or a after a hard reset.
- in conclusion if the phone hang on logo after flash or hard reset, you ara facing Emmc problem and you need to replace the phone chipset.