Flip Phones for Profit

Device Verification Checklist

Companion to "The Network Identity."

The money is made and lost in the fifteen minutes before cash changes hands. Get the IMEI by dialing star-pound-zero-six-pound or Settings, About. Run the checks in this order every time.

The four-check stack

CheckHowWalk-away ruleDone
1. BlacklistFree checker (Swappa's or the CTIA stolen phone checker); queries the GSMA registry. Free and instant.Blocked = walk away, no negotiation. A blacklisted phone is worth parts price only. No unlock, no fix, no guy who knows a guy.
2. Financing balanceFree checkers do not reliably show installment balances. Run the carrier's bring-your-own-device checker, or a paid IMEI report service (a dollar or two) that shows financed status.A financed phone can pass every other check and get blacklisted a month later. Starting out: do not buy financed phones at all. Experienced operators price money-owed at 30 to 40% off clean value.
3. Activation lockSeller signs out of iCloud/Google and erases the phone in front of you; watch it restart to the welcome screen. That is the only state you accept."I forgot the password" means the phone is probably not theirs to sell. Walk.
4. Carrier lockFree checkers usually report lock status; or insert a SIM from a different carrier.Not a walk-away: a price adjustment. Locked phones appraise lower and sit longer; when new, simply prefer unlocked.

Two walks are absolute: the blacklist and the activation lock. Financing is a walk until you are experienced enough to price risk deliberately. Carrier lock is arithmetic.

Re-check triggers

Re-run the blacklist check the day you list the phone (status can change between purchase and sale)
Check again if a buyer returns the device

Evidence trail (a clean check today is not a clean phone forever)

Bill of sale signed with IMEI, price, seller name, address, license number
Photo of the seller's license next to the phone before cash changes hands