[Galaxy S 4 Q&A, Help & Troubleshooting] XxLordxX:
First of all, sorry for quoting so many posts at the same time and specially for the huge delay in answer. I was a bit busy with some work last week and couldn't reply. I hope I can still be of help and that you can understand why it took so long to answer.

@MarcelRobinson

Hi,

Usually this is caused by an issue with the Zip. You have to try downloading again the file and flashing it. I believe you got a corrupted file.

All the best,

~Lord

@dieselman6969

Hi,

Have you tried a different sdcard? Or checking if there's anything in there that makes it dirty and, as such, prone to fail reading your sdcard?

All the best,

~Lord

[MENTION=5620347]Morikara[/MENTION]

Hi,

Again, I don't have a large knowledge of US carriers and frequency bands. But AFAIK the SGH-I337 is the American S4 model (AT&T specifically). Maybe the LTE of your carrier is operating in different bands than your device? I don't think updating the software would solve it... But you could try it to solve other problems, like that 5GHz router issue. AFAIK you can flash any official ROM as long as it's for the same device model -- for example, ZTO CSC into a XUG (I think that was my S4 CSC) CSC -- in your case i9505. I'd keep the same CSC, but if you can find an i9505 US ROM then why not?

All the best,

~Lord

@DonAndress

Hi,

It seems to be 11-pin plug.

All the best,

~Lord

@mafse

Hi,

Unfortunately with Knox bootloader you can't downgrade your stock system anymore. However you can try downloading a custom recovery and installing a KitKat ROM without changing your bootloader and modem configuration :). If anything goes wrong with connection or sound, just change the modem until you find a fitting "match". And if it doesn't work, just restore a backup or reflash stock ROM.

All the best,

~Lord

[MENTION=7132588]zarmend[/MENTION]

Hi,

If it doesn't give any sign of life, then it may be a hard-brick and you'd need to get a RiffBox or some other kind to fix it. I've sent my phone to a guy close to me that had one and got mine fixed when it happened. If you Google it you will find plenty of them :). If you're in Brazil I'd more than glad to share the contact of that guy I've sent my phone to fix.

All the best,

~Lord

@ATZ-007

Hi,

Have you tried booting in recovery and completely wiping the device (System, Data, etc)? Maybe something went wrong when using the multiROM and it messed up your internal storage...

All the best,

~Lord

@kaspar737

Hi,

Temperature sensor I don't know. But IR is working fine! I've used it a lot. Just remember to check the ROM development thread to see if IR Blaster not working is not a bug!

All the best,

~Lord

@cobrasound

Hi,

Have you tried reinstalling the Google Maps application or reflashing your ROM?

All the best,

~Lord

@GingerJono

Hi,

I know your problem was already solved, but I'd like to explain your issue. When you booted in recovery and kept holding the volume+power button the system probably understood it as a shut down command, therefore, you couldn't boot in recovery and only booted in system. To boot in recovery I usually hold the combination until the phone vibrates, then I only hold the volume key. Always worked for me :).

All the best,

~Lord

[MENTION=2314311]okidokiss[/MENTION]

Hi,

Have you tried cleaning the charging port of your device? Maybe taking it to a maintenance center to have it replaced? My friend's Galaxy S3 suddenly stopped charging, and when he replaced the charging port it was back working again.

All the best,

~Lord

[MENTION=6482692]Recrs23[/MENTION]

Hi,

TL;DR: the actual storage of your phone is ~9GB because of partitions and formatting. Read below for a more detailed explanation.

Actually that ~9.1GB is the "correct storage". Yes, you only have that much space available for your data in your internal storage. It happens for a couple of reasons. First is that the device doesn't actually have 16GB, but a bit less, since the calculation of storage is in bits, and 8 bits == 1 byte. Your phone has 16,000,000,000 bytes, but actually 16GB is 17,179,869,184 bytes, as you can see, you have almost 1GB less than you actually should. Now to the real problem. The partitioning of the device.

Samsung allocates a lot, I really mean A LOT of memory to system. So from that ~15GB you had left, you have ~1.1GB allocated to system, ~2GB allocated to cache (which IMHO is stupid, since it never even got to 500MB in my phone and most real cache data is stored in data partition), that gives us ~12GB left, then there are some other partitions which I don't recall myself now that will occupy those other 12GB, leaving only 9.1GB left to your actual usage.

Hope I didn't mess up any part up there haha.

All the best,

~Lord

@korouzdjsh

Hi,

I remember someone complaining of this problem some time ago, why don't you search a bit the General and Q&A threads for that? I don't remember now if it was solved or not... I myself don't have any ideas currently of the problem and how it could be solved, sorry :(.

All the best,

~Lord

[MENTION=1364858]sdeft[/MENTION]

Hi,

You can just keep your current configuration, if you start having cellphone signal problems, WiFi problems or sound isn't working properly, and those bugs are not related to the ROM (check the thread for any current bugs in the ROM), then you should try flashing only a different modem.

All the best,

~Lord

All the best,

~Lord