[Alcatel OneTouch Pop C7 Questions & Answers] codeasm:
Because this thread was the first one I completly read and looked at many time again, I post my results in short here.

Its posible to "flash" or "download" the KitKat rom from Hungary (or whereever the rom came from) onto a stock Alcatel OT POP C7 (7041X). Note the X, I have only that phone so, find another thread or user if you dont have a x (the kitkat rom is from/for a 7041D, so maybe your in luck too if you have the D version)

https://xdaforums.com/alcatel-pop-c7/help/alcatel-one-touch-pop-c7-kitkat-twrp-t3438624 this other thread has the working rom, tools, and scatter file.

I could write a tutorial, but i based my carefull work on that thread and the links he provided. I also watched the youtube video even tho I dont understand a word thats being said.

Basicly NEVER EVER overwrite or format the phone completly or do sh1t with the preloader. mobile_info we leave alone aswell and we dont like to touch NVRAM aswell. They kinda contain imortant stuff ;)

Basicly i made backups of everything I could or wanted (some thread said "Readback" the preloader can break alcatel phones, Ive succesfully read my whole phone back, but NEVER tried "downloading" or flashing preloader, cause i dont want a brick.) so I have everything saved and i could compare my files against any other rom that ppl uploaded.

KitKat rom from that thread I linked you to, get it, just all of it just in case. then if you compare them using CRC/SHA1 or MD5 against your dumps. hopefully like me, MBR, EBR1 and EBR2 are all the same compared to the kitkat one. so i took the liberty of not flashing them.

left us to do the: UBOOT(lk.bin in my backups), BOOTIMG, RECOVERY, SEC_RO, LOGO, CUSTPACK, ANDROID.

I noticed diferences in the logo, recovery and sec_ro, so I followed the tutorial/video on "downloading" those onto my phone... real simple...

I now have KitKat on my 7041x :D

Phone calls itself a 7041D now and Gyroscope sensor is not working

simple fix for the phone name is in the build.prop file, either google how to edit that (using root, or adb tricks) or do as I tricked, changed the file inside custpack.img using an hexeditor (HxD is my favorite). When you find a 7041D, replace with X. I suggest you use your brain and computer skills to deduce how to "replace" a character instead of inserting ;) seems to start at offset 0x03356000 (http://www-ccpp.tcl-ta.com/files/ALCATEL_ONE_TOUCH_7041X_KK.xml does excist, so it suggest an official rom either was made or support added anyway).

I replaced budhapest with amsterdam and could change the dualsim to false and compensating the file size change by removing some 0x00 after the file.. but felt it was too risky and only tried the D into X wich was succesfull. ill check if I can find the AcceleroMeter/Gyro? module or fix.

If anyone has a question, sure ask me. but the rom is there, make backups before ANYTHING, and never full format or touch the preloader. ive read it might be able to fix using some Jtag method, but I cant remember the thread and this is quite the old phone by now. if ever, ill try a newer rom, but probably have to make it myself. another kitkat rom Ive found wasnt clean but this one was like it was a OTA, the phone migrated the 58 apps, and all my settings where still there, whatsapp worked right away without trouble and I can now play Pokemon GO :D (the x version has the 1gig ram ;) )

Bedank [MENTION=3263974]JMailuhu[/MENTION] for making this thread and pointing and warning people. within 1 week of fixing this free phone Ive updated to kitkat. Now ill try fixing the accelerometer problem and maybe try other roms (ow well, kitkat does work fine) no root or custom recovery sofar ;)

TLDR: Have a cookie, sorry I talk too much. much better than "ROM NOW" comments ;)