DeviceDecoded
A1 · Carrier Unlock

Unlock Four from A1

Permanently remove the A1 network lock from your Four using its IMEI. Use any SIM, anywhere — including international carriers when you travel.

Price

$19.99

Delivery

1-5 business days

Method

Official IMEI

Permanent factory whitelist. No software.

About this Four × A1 unlock

A1 locks devices to its network when sold on contract or financed. Unlocking your Four is straightforward once your account meets A1's eligibility criteria — typically the device must be paid off and not reported lost or stolen.

DeviceDecoded uses the manufacturer's official unlock channel. We submit your Four's IMEI directly, and once approved, the device is permanently whitelisted. The unlock survives factory resets, OS updates, and SIM swaps.

A1 country coverage

A1 operates in 1 country. Your Four unlock works regardless of which country it was originally sold in.

  • 🇦🇹 Austria

Popular Four models on A1

FAQ — Four on A1

Can A1 block this unlock?
No. Once your Four's IMEI is whitelisted on the manufacturer's database, A1 cannot reverse it.
Will my Four stay unlocked after a factory reset?
Yes. The unlock is permanent at the factory level — it persists through factory resets, OS updates, and SIM changes.
Do I need my A1 account credentials?
No. We unlock by IMEI alone. You don't need to provide your A1 username, PIN, or account number.
What if my Four is still on a A1 payment plan?
It depends on the device's status. Start with the eligibility check at our unlock checkout — that page explains how the two-stage payment works before you commit.

Other brands on A1

Ready to free your Four from A1?

Enter your IMEI to start. Money-back if we can't deliver.

Start unlock →