When and how to enter APN?
When and how to enter APN?
When and how to enter APN?
Most devices auto‑configure APN. Enter it only if data or hotspot is missing.
iOS:
Settings → Cellular → Qoolline → Cellular Data Network → enter the APN from your plan → back → restart. 
Android:
Settings → Mobile networks → Access Point Names → Add → enter APN → Save → select it → restart. 
Enter the APN exactly as shown (case‑sensitive).
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