iphone 5s battery and speaker issues
hi all i bought this second hand iphone updated to ios 8.4 there are 2 issues which i am facing
1) it gets hot terribly when playing games only and battery depletes faster from say 80 to 30 % within 10 minutes!! and i treid only basic games and not those graphic intensive like asphalt etc. i am no gamer but it still worries me battery is gone or its a hardware fault..otherwise it charges fast, absolutely no heating or discharge problems in net, calls, watching videos etc. in fact i am impressed by the battery life(except in gaming) its that good
2) on full volume external speaker just gives up i have to reduce it to about 70 80% in order to play songs .also i could here static when kept on charging and sometimes observed that phone rings but no sound outout when on charging
can someone help with above issue..its out of warranty handset so going to apple would be costly affair i guess..
other than above issue its in absolute perfect condition and i really love my phone(returned to iphone from android after quite a long time)