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Re: Mobile data problems
If you want, you could try something to see if it is the same thing that was happening to me, worth a shot compared to a full wipe. Write down on a piece of paper all the details for vivo MMS2, like the username, password, address, protocol, etc etc. Then delete the apn (MMS2) and re-select vivo internet. Let it run a few hours/days, I know, you will probably not be able to send MMS (multimedia only, SMS will work fine), but you will have data.
Originally Posted by Tiago Baldissara
The reason is, when I had my galaxy s2, I had two APNs, one for data and one for MMS. The phone would randomly switch the default to the MMS one and not revert it back to the data one, and I would be out of data for the rest of the day until I realized so. At first I would restart the phone like you, but then figured it was the phone playing around with the APNs. I deleted the MMS one and it never had that problem again. It seems like the phone just picks the wrong APN when returning to cell data mode (from wifi or a dropped signal) and thus leaves you without data. Luckily for me, the at&t apns for data and mms can be merged into one. I don't know if the vivo ones can be merged.