How to fix error 128
Oh my god. I tried every which way but loose to fix this problem and I did it without the help of 3 Virgin Mobile technical support representatives, one who actually hung up on me after 31 minutes of waiting ''due to heavy call volumes''. I'm going to set this up by covering that the people at Virgin Mobile actually had me reset the phone without I might add mentioning I should back up my data, of which I already did vie Samsung Kies.
Ok, first of my phone is a Samsung Galaxy Reverb (M950), so this might not work for you, but what can I say but It worked for me and you may want to try it if you keep getting the #128 Login Failure: Unknown Error.
Samsung, rather Virgin Mobile actually tried to convince me to hold off because other people were receiving the same error and a supposed fix was coming, and that actually after asking If I should just send it in to get fixed. That was something they were willing to do, but you know how people are.
Like I said I tried everything, Including deleting all the apps, I had and clearing the cache of every system app. Re-entering the MSID and MSN numbers via ##847446#, replacing them with ten 0's as suggested and then, re-entering the numbers, taking out the battery etc. Nothing.
The only thing that seemed to work for me and erase the issue was to go to SETTINGS , Then go to DATA USAGE, Uncheck Mobile Data, UNCHECK ''SET MOBILE DATA LIMIT'', exit, then while powering off the phone TURN OFF ''DATA NETWORK MODE'' from the power button and rebooting the phone.
Once this was done, again for me, after a few tests to make sure this was the problem, I turned all of those features BACK ON and the problem vanished.
If this does not seem to work for you, try it again, but I'm just going to mention, I also happened to download an app called ''My Data Manager'' from Google play, thinking it would reset/replace the corrupt/missing data files if I played around with the program a little.
I have no idea if that program had anything to do with resolving this issue, but I no longer have this issue and since I went through such great lengths to find the problem and did, I felt for other users who may be having the same problem who were as picky as me about it showing up as randomly as it had.
Good luck...
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