After successfully rooting my phone, I mistakenly soft-bricked my phone by modifying the build.prop file. Some research tells me that the only way to repair it was to flash the stock ROM.

I have already downloaded the stock ROM. All I need to do is flash it.

I tried flashing the ROM using SP Flash Tool, as my phone uses a Mediatek processor. However, it doesn't work.

So now I thought of flashing over ADB sideload. So could you please tell me how is that supposed to be done?

In the command adb sideload <filename> whether the <filename> has to contain the zipped version of the stock ROM or something else.


  • 1) What didn't work with SP Flash Tool which is the champion in flashing MTK phones? 2) Which device have you got, and which Android version did you brick? 3) Can you share the link or the tutorial from where you obtained the stock ROM? 4) Do you have a custom Recovery installed? 5) See this for ADB sideload.
    – Firelord
    Commented Jul 26, 2015 at 11:52
  • 1. The SP flash tool doesn't do anything when I connect my phone and click on "Download". 2. It's a Karbonn A52+ running 4.2.2 Jelly Bean. 3. I downloaded it from needrom.com/download/karbonn-a52-2 4. No, it's running the stock recovery.
    – Tanmay Vij
    Commented Jul 26, 2015 at 12:27
  • Do you have a backup of the original build.prop? Can you still boot into... oh, stock-recovery. Strike that part. Can you flash a custom recovery (e.g. CWM/TWRP) to your device, and would that be an option?
    – Izzy
    Commented Jul 26, 2015 at 12:31
  • Unfortunately I don't have the backup of the original build.prop, but I remember what I had edited.. I had just added a line to the top.. And unfortunately I don't have much idea about flashing custom ROMS..
    – Tanmay Vij
    Commented Jul 26, 2015 at 12:34
  • The ROM you downloaded is a scatter based ROM meant to be flashed using SP Flash Tools (the instructions at that needrom page are half-baked) and I don't think adb sideload would help with that ROM (that just an opinion because I never tried flashing a scatter based ROM using adb sideload) // There is an alternative here.
    – Firelord
    Commented Jul 26, 2015 at 12:38

1 Answer 1


I finally was able to solve this problem, as Firelord said, adb sideload wasn't able to help in the case of this ROM. And SP Flash tool turns out to be the best for MediaTek devices.

Most of the ROMs (Stock or Custom) are available on http://www.needrom.com, so I would recommend it to others for downloading ROMS. However, the website requires signing up in order to download ROMs.

SP Flash Tool, in order to work, needs the following things:

Note: SP Flash tool needs to be Run as Administrator while using it.

A factory data reset from the Recovery mode is advisable after successful flashing.

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