SM-G900A will not flash stock firmware, will not recover

A little back information to clear up how this started; a friend of mine has some very serious mental health issues and over factory reset his SM-G900A because he is paranoid someone will get his phone and steal his information. Its not stolen or found. The reactivation lock was triggered and hes so overly medicated he cant figure out what his Samsung account information is to recover it. He claims to have sent it back to Samsung and they couldn't recover it. I'm new to modding androids but have had a lot of success tweaking my SGH-I537.

I tried to reinstall the stock firmware to get around the reactivation lock. When i checked the properties of the phone on my pc it said it was running G900AUCU4BOF3 firmware. But a google search told me that the OF3 was a OTA to downgrade it to NCE. Several attempts with Odin "failed" every time and brought me rite back to the reactivation lock. Until the last attempt with my third different set of NCE files ended with a "Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again" warning on boot up. But Kies or Smart Switch wont connect to the device now.

Can someone help me please?

HELP installing stock firmware on my SM-G900a

A little back information to clear up how this started; a friend of mine has some very serious mental health issues and over factory reset his SM-G900A because he is paranoid someone will get his phone and steal his information. Its not stolen or found. The reactivation lock was triggered and hes so overly medicated he cant figure out what his Samsung account information is to recover it. He claims to have sent it back to Samsung and they couldn't recover it. I'm new to modding androids but have had a lot of success tweaking my SGH-I537.

I tried to reinstall the stock firmware to get around the reactivation lock. When i checked the properties of the phone on my pc it said it was running G900AUCU4BOF3 firmware. But a google search told me that the OF3 was a OTA to downgrade it to NCE. Several attempts with Odin "failed" every time and brought me rite back to the reactivation lock. Until the last attempt with my third different set of NCE files ended with a "Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again" warning on boot up. But Kies or Smart Switch wont connect to the device now.

Can someone help me please?

bricked SM-G900A SAMSUNG GALAXY

I recently updated to the rooted lollipop upgrade using the chainfire method. it had lags so I decided to go back to 4.4.2. I made an error by flashing stock 4.4.2 and now my phone is bricked in boot loop. can anyone help me to restore my phone please. The recovery system status says custom.

Need Android 5.0 stock kernal for SM-G900A veriety

Hi guys, so call me stupid but I incorrectly thought that I would be able to flash 4.4.2 onto my 5.0 AT&T device. Odin said it passed, but now I'm stuck in a bootloop that eventually terminates into recovery booting. I tried erasing memory to factory and wipe the cache partition to try and fix but no cigar. So what I am looking for (I think) is the 5.0 firmware so I can use Odin to re-install it. If anyone has any different advice, please let me know.

Thanks,
dman70090