Radiation is not good for your eyes or brain, so wait until you get more bars before trying to use your phone. If it is struggling to connect, it’s not good for you.
By the way, if you are stuck somewhere with low battery and can't get hold of anyone, put a new voicemail greeting on your phone giving your location (as best as you can) and that you need help. Hopefully you have enough battery and bars to upload a voicemail greeting. That way if someone gets worried, they can call you and then get help from hearing the message.
In any case, wait for more bars before trying to do something with your phone, if you can. PR