1Can I lock and unlock the phone from my shop?
Yes. Press one button in the shop app — the phone locks or unlocks. The lock or unlock command reaches the phone as soon as it has internet. On the installment due date the lock is applied automatically; that needs neither a separate button press nor internet on the customer's phone.
2What happens if the customer's phone has no internet?
The payment schedule is saved in the phone in advance, so when an installment is missed the lock is applied even without internet. When the customer pays you, you record the amount in your shop app; if the customer's phone has internet it unlocks by itself. If it has no internet, you generate a code in your app and tell it to the customer; the customer enters the code on the phone and it unlocks without internet.
3Can the customer delete the app or reset the phone?
No. The app is installed as the phone's "device owner" — Android's own administrative level. In this mode, deleting the app, force-stopping it, factory reset from settings, safe mode and USB debugging are all disabled.
4Can anyone bypass the lock?
The honest answer: no lock software in the world is 100% unbeatable. For an ordinary customer it is practically impossible. If someone has a repair shop replace the entire Android software (flash), the phone disappears from the system — the moment that happens you get an alert, and the record stays with you. This is the limit of every lock app.
5What does the customer see when the phone is locked?
A screen appears on the phone that cannot be dismissed, showing your shop's name, contact number and the outstanding installment. Emergency calls stay open. As soon as the installment is received, the phone immediately returns to normal.
6While installments are being paid on time, is there any restriction on the phone?
No. Calls, WhatsApp, banking apps (Easypaisa, JazzCash, etc.), camera, games — everything works normally. The phone does not slow down and the battery does not drain. The customer only receives installment reminders.
7Does the customer get installment reminders automatically?
Yes. Before the due date, reminder messages go to the customer's phone automatically. You can also send your own message (for example, "Please come to the shop tomorrow and pay your installment") — the customer sees it both as a notification and inside the lock app.
8Can the phone lock at night as well?
No. No new lock is applied during night hours. The customer's sleep and emergencies are taken into account; locks are applied during the day.