My friend was having a tough time activating his new Reliance Jio 4G sim, the activation was completed from the company's end but there was no signal/tower on my friends compatible 4G phone. Nobody had a clue what was wrong? As usual we made sure common issues like the ones listed below were taken care of but nothing helped.
- Your phone does not support 4G, and if does make sure it supports spectrum bands compatible with Jio (800 MHz,1800 MHz and 2300 MHz).
- Your phone has Dual-SIM support but only one sim supports 4G, if this is the case make sure you insert the sim in correct 4G compatible slot which is usually the first slot.
- Ensure that the phone is set to work with LTE network mode (Settings > Mobile Networks > Preferred network type.) and data option is switched on for the 4G compatible primary slot.
- If above two conditions are met and you still do not get signal, make sure your sim is properly inserted and is activated from the operator's end. Try re-inserting the SIM and restart your phone.
Unfortunately, no solution from the above list worked for my friend and by fluke he toggled the "Accessibility->Switch Access" option on his Yu Yuphoria phone and the network came. While I am pretty much convinced this should not be the reason for the network to appear, but having a Reliance Jio Security setting in there as shown below makes things a bit confusing??? If you are having a similar issue, try this unconvincing solution and if this works do share your results with us in comments section below.