I have a Samsung Galaxy S4. On the lock screen and on pop up messages some of the characters are blocks. Here is a screen shot of it:

IMG: Screenshot - Block Characters

Screenshot - Block Characters (Click to enlarge)

I'm not sure if it's one of my apps that is doing this or if it's something else.

  • If you restart, does this persist? Looks like a corrupted font file to me.
    – Lie Ryan
    Commented Aug 8, 2015 at 10:00
  • @LieRyan The OP commented, it solved after a restart and forget to mention you. Could you post that an answer?
    – Lucky
    Commented Aug 9, 2015 at 8:53
  • @Lucky: reposted the comment as an answer and expanded a little on the possible reasons
    – Lie Ryan
    Commented Aug 9, 2015 at 9:23

1 Answer 1


It looks like a glitch in the font rendering process. If it is an in memory glitch, you may be able to resolve it by restarting the device. If it persists across restarts, then it is possibly either a corrupted font file or there's a bug in the font loader. In either case, you'd want to try to see if a restart resolves it.

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