Hello! I understand you're in the UAE and after uninstalling and reinstalling the BPI app, you're encountering a "DEVREG" error that stops the app from working properly. I'd like to help you get this sorted out.

To better assist you, may I ask:
- Are you trying to register your device for the first time after reinstalling?
- Does the error message say anything more specific besides "DEVREG"?
- Have you already tried clearing the app cache or checking your registered mobile number with BPI?

In the meantime, here are some steps you can try, tailored for your Windows device context and the common causes of DEVREG errors in BPI app from abroad:

1. Ensure your mobile number registered with BPI is current and active abroad. Sometimes device registration problems happen if the registered number is not updated or reachable for verification.

2. Check your internet connection and switch between Wi-Fi and mobile data if possible, to rule out connectivity issues that might block device registration.

3. Clear cache and app data (if possible in your environment). Since you mentioned reinstalling, this might already be done, but worth confirming if the fresh install is clean.

4. Disable any VPN or proxy service temporarily. VPNs can sometimes interfere with the app's ability to connect to BPI’s servers and verify device registration.

5. Try app updates. Make sure the BPI app is the latest version from the official source.

6. If the device registration still fails, try to reach BPI's 24-hour Contact Center or email [email protected], especially since you are accessing from overseas and device registration can have geo-restrictions or require manual intervention[2][9].

If you can provide more details on the exact error prompts or any previous troubleshooting you have done, I can help guide you further.

Are you satisfied with this initial guidance, or shall we explore more advanced solutions?

tried loging in multiple times

Thank you for letting me know you’ve tried logging in multiple times. It sounds like your BPI app might have temporarily blocked login attempts due to exceeding the allowed number of tries, which is a common security measure.

Here’s what I recommend to resolve this:

1. Wait for the Cooling Off Period:
The BPI app imposes a temporary lock or cooldown period after several unsuccessful login attempts. Usually, you need to wait up to 24 hours before trying again. This period helps protect your account from unauthorized access.

2. Reset Your Access or MPIN:
If you still cannot log in after waiting, try using the “Forgot MPIN” or “Reset Password” feature in the app. You will receive a code via SMS to your registered mobile number to reset and regain access.

3. Avoid Further Attempts For Now:
Trying to login repeatedly within the cooldown window can extend your lockout or cause additional blocks.

4. Check Your Registered Mobile Number:
Since you are in the UAE, make sure your BPI account’s registered mobile number is active and able to receive SMS messages internationally. This is crucial for verification and reset codes.

5. Contact BPI Support if Locked:
If the account remains locked or you can’t reset via the app, you will need to contact BPI’s 24-hour Contact Center or email [email protected] for assistance with unlocking your online access. They can manually reset your login status.

If you want, I can walk you through the reset steps on your app or help you draft a message to BPI Support. Does this sound good to you? Would you like me to explain how to proceed with the “Forgot MPIN” option next?

For reference, these recommendations come from common solutions to repeated login lockouts with the BPI app[1][3][9].