Have messed up the mtd command. ART partition got wiped and even though I could get the MAC addresses working, WiFi is extremely low power.
Need the wifi calibration data for MR7350. Specifically the ART partition/mtd8 block/radio data.
Will be deeply grateful if any soul could help me out in this
ART data is unique to each physical unit. It contains the calibration data and other device intrinsics that are tested and programmed on the factory assembly line. Using another device's ART partition is not an option here. If you do not have a backup of your own ART partition, the device is toast (at least the wifi hardware; it can still be used as a wired router).
I understand that, but if I can get a dump, it would still be worth a shot.
Being a student, $30 is not a small amount of money to have as a paperweight for me 
Using the wrong ART data can lead to many other issues including problems with performance, running out of compliance from a regulatory perspective, or even further hardware damage.
Wouldnt it still be worth a shot?
Youre saying I either have a deadweight or a quickly dying, possibly non compliant hardware.
This router was intended to be used for WISP to broadcast my Dorm's wifi (it only allows one device per student ID to login) and without the wifi it's not much worth as of now.
No.
It still works as a wired router.
Running out of compliance is illegal, and even beyond the legal considerations, it can cause problems for other wifi users in the vicinity (especially important given that you are in a dorm).
Your desired application is understandable, but may also violate the policies at your school. Keep that in mind before going any further.
Your desired application is understandable, but may also violate the policies at your school. Keep that in mind before going any further.
Yes, the school allows it thats how everyone uses multiple devices here.
Compliance in what manner? I do not intend to broadcast on any non-compliant channels.
Using it as a wired router doesnt make sense to me and the aftermarket value of this is probably down to $5 without wifi
It's not about non-compliant channels (although that can be a factor, too)... it's about power levels and other low level RF considerations. For example, if the wrong calibration is used on your radios, it could cause power to be higher than expected and/or may cause waveform distortion and other issues. Depending on the nature of these power/distortion characteristics, this could severely affect the RF environment around you.
I do not intend to run the device at max dBm anyways.
Its a single room, i just need wifi to work 
I think compliance can be obtained with the right configuration. But getting the wifi to work at all is a challenge right now