So I have the vDM client error. I have tried flashing the stock RUU but nothing seems to help. When I boot the phone the error message says "unfortunately vDM client has stopped unexpectedly" it pops up once then goes away without me touching anything. I have tried updating my PRL and Profile still to no avail. My 4G, Wifi and 3G all still work but the signal is sloppy most of the time now. I can still make calls and receive texts. I have also contacted Sprint and they gave me some bs about the cell tower being messed up in my area. It has been 6 weeks and it is still not better. I don't know what to do anymore there is very little info on this problem at all and why it happens. Please help me if you can. I am pretty tech savvy but this is one thing that has got me puzzled.