How to activate a iPhone 5 - Cell Phones

Did you mean that you can't activate iPhone? If so, you may encounter "iPhone Activation Server Cannot Be Reached" issue. You can have a try the below solutions to fix it.

Solution 1: Retry after Some Time
Solution 2: Restart your Device
Solution 3: Network Issue
Solution 4: Lock/ Unlock SIM Status
Solution 5: Activate Via iTunes
Solution 6: Restore iPhone to Factory Settings before Activation

For more details, check: How to Fix "iPhone Activation Server Cannot Be Reached"

It's a common issue. You can try the below solutions.

Solution 1: Retry after Some Time
Solution 2: Restart your Device
Solution 3: Network Issue
Solution 4: Lock/ Unlock SIM Status
Solution 5: Activate Via iTunes
Solution 6: Restore iPhone to Factory Settings before Activation

For more details, check: How to Fix "iPhone Activation Server Cannot Be Reached"

you can't do, you have too login

contact your cell provider,or connect to a comp with itunes

Unlock Timeframe: 7-15 working days
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IMEI: Please add IMEI number which contains 15 characters only

There's a couple possibilities. Do you have an Apple ID and can you just log in with that? Or is it popping up with someone else email/username?

If Find my Phone is disabled (as it should have been in order to sell it) you could also put the phone in DFU mode and install a new IPSW (OS) file, which would overwrite everything and make it as if you were taking a new phone out of the box, software wise.

Hai, What's your current locked carrier? You can unlock your iPhone 5 by using Remote unlocking method. It's one of the best and safe way to unlock your iPhone 5 .If you are interested in this method visit Theunlockarena.com . Here you can unlock your phone at low cost.