hello everyone , i bricked my mr200 v2 i bought a ch341 with soic8 test clip , but i have no idea what chip i should connect and in which order , plus i don't know how to make the bootloader , i read all similar forums and know what to do but i don't know how ,
please if someone would be kind enough to point me in the right direction , im new to chip programming and i need this modem alive with openwrt .
device was changed to openwrt with tftp method and was working good until i ran out of space cuz i did not know how to make a custom openwrt image , and after that i tried to factory reset using LuCi which i did couple of time before and worked fine every time until it did not , it froze and router became unresponsive , after that i waited 15 minutes for teh router to respond but nothing , out of options i manually switched power on router and rebooted , it did not boot at all , but at the first boot after failed factory reset , i tried the tftp method again , no led but WPS , and waited another 15 minute for the tftp to complete and for the router to boot back up , which it did not , now i have a router that wont go in tftp mode and no led will turn on , only signal LEDs for a few sec after i turn the router on ,
i know that i must cut the bootloader from a full dump , add it on top of a openwrt image to prepare my .bin file , but i don't know how
and i know i should dump my router chip partitions ( for mac addresses etc.. ), but i also don't know how
i downloaded the Archer MR200(EU)_V2_181219.zip file from official tplink site
please help @gurangax
hi first you need to backup your firmware. make sure to read them all 8MB.
This is example what you can do https://www.youtube.com/watch?v=dC4s-TThEts
tnx for reply , i've backed it up a few times , almost all of the file is filled with FF till i reached 007C0000 to 007D0000
im trying to find a dump to compare
ur advice would be very usefull 
also found data at 007E0000 to 007E81a0 , look like system partitons related to radio and/or serial mac etc ... did not examine the data yet
Watch the video.
The last 3 partition contains information for your specific router like mac number and wifi rom file. Now you can modify the backup by writing the bootloader and operating system of your choice either stock or openwrt.
I can help if you want. Just send the dump file
well i fixed it so i'm going to share the steps , it was my first time in IC programming 
but with some luck i fixed it
i bought a full dump of tp-link archer mr200 eu ver 2.0 and stripped the last 3 partition and joined it with my dump of original last 3 partition
the videos mentioned are correct BUT they are working with a 24xx chip , i know u are aware of that but i'm pointing this out since anyone like me doing it for the first time gonna get confused why they connect the chip but nothing works and programmer gets disconnected ,
before working with IC and similar electrical stuff , you should find the datasheet for chip you are about to flash ( gd25q64csig in my case which the program recognized as gd25q64c but they very similar so no problem ) , find the right order of placing it on the programmer and use a proper adapter , and get to know what each one does just to get to know whats going on ,
after that i flashed the bin i created and was hoping to success BUT NO , the program i used for flashing is named CH341A Programmer V1.03 dev name Shichang Zhuo , and it froze in middle of process , i tried to close it but access denied , well i had no choice but to reboot the computer , i thought to myself that i bricked it so hard by now but i never know unless i test it ,
i read the chip but it was filled with FF , i erased it , flashed my bin , verified it , and VOILA , after i plugged it in power it reboot and booted , with stock fw ofc , i checked my mac address and soon as i saw they're right , i flashed ArcherC2V1_tp_recovery.bin and upgraded to openwrt-23.05.0-ramips-mt7620-tplink_archer-mr200-squashfs-sysupgrade.bin afterwards , everything working so far , im trying to create a LTE connection in it , struggling yet learning 
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