HTC M8 Agent IQ Battery Drain?

yeah, keep your eyes posted for the GPS ion to suddenly appear in the notfication tray.  i've had all possible carrier bloatware disabled since literally the first hour of owning this phone last year, and this problem is still happening ot me.  doesn't appear to have any rhyme or reason,a nd seems isolated to AT&T.  there are plenty of threads documenting it around the interwebs...here's perhaps the best one i've found yet, but still no solution or even an acknowledgement from ATT.

http://forums.androidcentral.com/htc-one-m8/494182-massive-battery-drain-gps-constantly.html

Same issue here, waiting for a response and update from AT&T to correct this. My phone can be idle with the screen off, but I'll pick it up and it will be warm to the touch with the GPS icon firing even though location services are disabled. I have confirmed that this stops when I force stop IQ Agent Service, but I'm unable to prevent this from continuing without rooting. I shouldn't need to root my phone, voiding it's warranty, for it to function properly.

I am having the same issues as everyone else. I have tried to enable all of my disabled apps and then update them through the play store. I then disabled the apps again with no luck. I have done a wipe cache partition, even a factory reset and I am still having the issue. I can replicate the issue several ways. If I turn on airplane mode the GPS icon will flash after 10-30 seconds. After this I can go into the running apps and force stop the IQ Agent. If I turn airplaine mode off, the GPS icon will flash again and will start the IQ Agent back up. If I force stop again, as long as I don't move my phone (as in leave my house) it will stay off for a good while. If I leave my house it turns on again. I notice it more when I travel back and forth to work. I have called AT&T four different times and only one person knew what I was talking about. She was going to open an advanced support ticket of some kind and someone would call me within a few days. A few days went by and no call. Called back in and they have no record of the ticket so they entered in another ticket but they wanted me to do another factory reset before they did. I refused considering it was only 3 days since I just did one. They also want to send me a refurbished phone to see if it fixes the issue. This phone is only 6 months old and it has an OtterBox case and a tempered glass screen protector and its in wonderful condition. I refuse to accept a refurbished (used) phone to fix an issue I did not create. I have even gone to the extent to file a BBB complaint. Someone from their executive office tried to contact me while I was at work and I called back and left a message but I have not received a call back yet and that was over 3 days ago. As for the support ticket I have recevied a call also when I was at work and I called back and left a message as well as times when they could call due to my work schedule and the lady continues to call in the middle of my work shift and leaves the same message over and over. I have tried everything in my power to work with AT&T and even with HTC, which is no the cause of the problem and have had no luck. 

ATT advanced care for customer service????

I had a  ticket created also.  They lost the first one.  So I had them try again.  The lady called 3 times, each time during the day when I am at work.  After repeated attempts to get her to call me when I was available and leaving specific times to call, she left me a message saying that unless she was able to reach me during her working hours (before 5pm) she was going to close my ticket.

Some people have jobs that make them unavailable until late,  What are they thinking?  They should be working around our schedules.  How arrogant to think that we need to work around their schedule for service.

There are other providers out there and maybe eventually they will figure that out when they start losing customers.

This issue was not present on all carriers so it seems to be more carrier related than M8 related.   The issue is the Carrier IQ agent that is present in the latest release that runs using GPS and causes the battery to drain.