Android phone contacts deleted - how to restore

If the contacts on your Android phone got deleted by accident, or if you don't know how it happened, do the following to get back your contacts.

If the contacts are present in the Bin, just restore them.

If they are not present in the Bin, you can still restore them, if they are being synced, or if the phone is being backed up regularly.

If your contacts had sync turned on

Disable sync of Contacts so that it doesn't interfere with the restore process.

Go to Settings -> Accounts -> your Google account -> Account Sync.

Turn off sync of Contacts.

• Go to the site to which your contacts are getting backed up - if you use the Google Contacts app, this would be contacts.google.com .
• If any of your contacts are missing, select the "Undo changes" option under Settings. Select a point in time when you are sure all your contacts were present.
• Click through and come out of the dialog screen.
• Wait for a few seconds till all contacts are restored.

Clear the cache of your Contacts app.

Turn on sync of Contacts.

If the contacts don't show up on WhatsApp or any other app that use your contacts, exit that app, clear their cache and open the app again.

Restoring contacts from phone backup

Go to Settings -> Google -> Set up and Restore -> Restore contacts

Go through the rest of the process.

If the above doesn't work and sync of Contacts is turned on, turn it off. Clear the cache of the Contacts app and try once more.

Best computer/device/setup for online classes for school students

Raspberry Pi (Model 4B) is a good choice for a computer/device for school students attending classes online.

The Pi 4B is like a computer's motherboard, so resellers and others bundle it with the following essential items, making it a complete kit (for around Rs.6500):

• Power adapter
• 32GB SD memory card
• Case - with fan
• Network patch cable
• MicroHDMI to HDMI cable

Other items needed:

• TV or a computer monitor (new monitor might cost around Rs.5000).
• Wired earphones with mic (around Rs.500 to Rs.1000).
• Wired Keyboard and mouse are needed for setup (around Rs.1000). If you wish, get a wireless keyboard and mouse when it is time to get new ones.
• If you have an inverter at home, there is no need to buy a new UPS (Rs.3000). Plug in the Pi into a socket that gets power from the inverter.

Availability of products on Linux

The official Operating System (OS) Raspbian, and other OSs, can be installed on the Pi. In certain cases, companies do not distribute their products for Linux. So, before you settle on Pi, list the products that you consider essential and ensure those are available for the Pi. At times, instead of a native product, they may have a version of the product that can run on the browser - check if the browser version has all features you need.

Cost and maintenance

Total cost would in the range of Rs.8500 to  Rs.16000, depending on what you have at home already.

Amazon Fire Stick is also an economic option and needs to be tested. The keyboard, mouse and headset (with mic) would have to be connected via Bluetooth since newer versions of the Fire Stick don't have a USB port. If required apps are not available on the Amazon app store, one has to sideload Google Play Store and then install required apps or straightaway try Apps2Fire. Cost: Rs.4000 + another Rs.3000-3500 for accessories. TV may not be in a private place, which could be a disadvantage.

Other alternatives in this price range, like Samsung 10" Tab and Chromebook, cost a bit more to buy and maintain. They cannot be upgraded when the time comes and have to be replaced. However, they have a wider selection of apps (though, Android updates are provided only for 1.5 to 2 years). The Samsung Tab obviously has a touch interface - consider if it could be an advantage for any of your apps. Chromebook is an integrated product and gets OS updates for eight years.

On the other hand, the Pi can be upgraded by buying just a new Pi board - the other items need not be bought again.

Adding a Google account to your Android phone

Let’s say you have an Android phone in which you already have a Google account, possibly your main Google account. If the data from the new account (e.g. Contacts), must not get mixed up with data in your current account (your existing Contacts), the following should help:

Keep the data/wifi connection turned on throughout. We will control this setting using the Airplane mode.

• Turn off Sync in Settings -> Users and accounts - the general one that applies to all accounts.
• Add a Google account (you need an internet connection to do this)
• Turn on Airplane mode (now internet connection is off)
• Turn on Sync in Settings -> Users and accounts (only then will the sync controls of apps of the new account would be available for you to turn on/off).
• Turn off sync for most apps - you may want to turn it on only for a few apps e.g. gmail, in case you need to know when you get email for the account being added.
• Note that Airplane is still turned on so since we don’t want data to get downloaded in the few seconds between creating the account and disabling sync.
• Google Drive: if sync is turned on, all your files will get downloaded.
• Turn off airplane mode.
• Verify if the apps of the new account, e.g. gmail, which have sync turned on, work as expected.