How do you set up device approval and a transaction password?
A step-by-step walkthrough for getting mobile banking working on a new phone by clearing device approval and setting a transaction password.
Short answer
Install your bank's app from the official store, then sign in with your customer number and internet banking password. On an unrecognized phone the app sends you to Device Approval: enter the one-time code from the SMS and give the device a name. Then open Settings, find Password Operations, and create and confirm your transaction password.
What you need
Step by step
Install the app from the official store
Open the App Store or Google Play, search for your bank by name, and confirm the developer listed is the bank itself before installing. Copycat apps with near-identical names show up in the same results, so check the publisher rather than the icon. Grant the notification and SMS permission prompts as they appear during setup.
Sign in to mobile banking
Launch the app and tap "Log In to Mobile Banking" or "Log In". Enter your customer number or national ID number, then your internet banking password. If you don't know the password, use the "I Don't Know My Password" link on the same screen to create a new one with your card details.
Clear the device approval step
When the app doesn't recognize the phone, it routes you to a "Device Approval" or "Register Trusted Device" screen. Enter the one-time verification code sent to the number registered with your bank. If nothing arrives, tap "Resend Code"; if the number on file is outdated, you'll need to update it at a branch first.
Name the device and save it
After verification the app asks you to name the device. Type something that clearly identifies your own phone and tap "Save" or "Confirm". Registering it this way means later logins won't require an SMS every time. The same screen usually lets you turn on fingerprint or face login.
Set the transaction password
Tap the profile icon or open "Settings", then choose "Set Transaction Password" under "Password Operations" or "Security Settings". Enter the new password twice. Birth years, repeated digits, and sequential digits are usually rejected. A confirmation SMS arrives once it saves.
Check your approval method
In Security Settings, review which approval method applies to money transfers and card transactions. Banks typically offer a transaction password, an SMS code, or an in-app "Mobile Approval" notification. Pick the method you prefer for the transaction types you use most and save it.
Test it with a small transfer
Move a small amount between your own accounts and confirm the transaction password is requested and accepted. That way you won't discover a broken password in the middle of an urgent payment. If something fails, reset the password from the same menu.
Tips
Watch out
No real bank employee will ever ask for your device approval code, your transaction password, or a screen share. A device approval you complete while someone guides you over the phone ends with the fraudster registering their own handset as a trusted device on your account. Hang up on calls like this and dial the bank's own call center number instead.
Frequently asked questions
+Do I have to visit a branch for device approval?
Usually no. The code sent to the mobile number on file completes it inside the app. If your number is outdated or your customer record is incomplete, the bank may require a branch visit or a video call.
+I forgot my transaction password, what now?
Create a new one from Password Operations under Settings using your card details plus SMS verification. If the account is already locked, you'll need to call the bank's call center.
+Can I use the same account on two phones?
Most banks allow more than one trusted device, though some limit you to a single active one. Your "My Registered Devices" list shows which rule your bank applies.
+My phone number changed, can I still do device approval?
Update the number with your bank first, since the verification code goes to the old one. Updates are typically done at a branch, an ATM, or through identity checks with customer service.
+Is a transaction password the same as an SMS code?
No. The transaction password is a fixed one you choose yourself, while the SMS code is generated fresh for each transaction and used once. Banks often require both together.
Sources and verification
Last verified: September 15, 2026. tell us. Menu labels are English renderings of common Turkish banking app wording; exact names vary by bank.
This content is for information only; for official procedures the relevant institution’s current announcements take precedence. Details: disclaimer.