Audio settings : to go to engineering mode go to your dial pad & type *#*#3646633#*#* in here just select audio then go to loudspeaker mode now scroll down to max vol 0-160: by default it is 128 & you can change it to 160 but at 150 and above i noticed it produces more noise then voice.. Mtk engineering mode apk app has been around for a while now. it is an app that is specially designed for phones powered by mediatek processors. most affordable phones in the market today, are powered by mediatek processors.. In micromax q380. [guaranteed fix] still working 4/18/2018! 100% disk usage! system at 100%!.
Now. i will share to you one of all feature from mtk engineer mode. it is how to setting enable and disable gsm ( 2g ) wcdma/umts ( 3g ) and lte ( 4g) 5. and then choose sim select example sim 1 as mobile data connection default. 6. there are gsm mode, umts mode, lte band mode. tick to enable and untick for disable.. I rooted the device and used mobileuncle tools to login the radio info under engineer mode mtk and used the command at+"imeinumber" with response code at command msent. still the phone shows invalid imei and imei slot 1 and 2 as unknown and imei sv(slot) 1and 2 as 78.. This post is divided into two parts one is for non rooted users and the other for rooted users. non rooted users. this can be done by either mtk engineering mode which works on devices having mtk(mediatek) chipsets or those who don’t have mtk they can simply use the volume+ app which works on all devices..
