I already have part of a guide.
I just need help with the last bit.
This guide is from email@example.com
Sprint S4 Diag instructions:
2. click qualcomm usb settings and choose DM+ADB+MODEM
3. then turn on usb debugging in the development settings
4. plug in
This part did not work for me as I was running CM. But once I flashed to stock it was easier.
The rest will assume your familiar with flashing and know what to do
16 digit passwords are the same as the s3 versions
sprint-01F2030F5F678FF9 or 2012112120131219
To set the verizon and uscc to nv only you will need to send both the 16 digit password and the spc
Verizon and USCC just read from the donor for your info and write to the phone make sure you set pref mode to cdma_hdr
sprint write data settings as normal sprint phone in profile 0 and 1 active will be 0 and place the 10.key in efs2 using dfs
uscc doesn't need any sim but will display the invalid sim error
sprint no errors
verizon some need a used sim some doesn't need any sim try without first
if you dont have a donor then just put the mdn and min and sid in the nam tab on dfs with a prl
and data tab user id will be firstname.lastname@example.org
and pw will be vzw same for mobile ip tab
but don't half flash give your customers 3g if not i eventually get the business
Want to learn 3g look for my 3g flashing guide online Its free to download