A715GUW won't boot

[SPVFD47]

I have a A715GUW that's stuck in a boot loop. I can't even get into the recovey menu. I can however get in the download menu by holding vol up and down together.

I was able to get to another menu one time that said tzbsp_err_fatal_rpm_err. Anyone know what happened? And have a solution to fix it ?

Thanks.

 

[mustang7757]

Welcome to AC!
Sound's like you need to flash the stock firmware with Odin and Frija firmware tool

 

[SPVFD47]

I flashed the BL, AP, CP, and CSC with Odin. I'm not familiar with Frija.

Can this loop be caused by bad hardware?

 

[mustang7757]

I flashed the BL, AP, CP, and CSC with Odin. I'm not familiar with Frija.

Can this loop be caused by bad hardware?

Frija is just the firmware where you get the latest from Samsung server

If you have bad hardware I'm trying to figure out that's why I want you to flash to the unlock firmware since you know how to flash

 

[SPVFD47]

Flashed a few times with Odin. I got the firmware elsewhere. But didn't do the USERDATA thou, I'm hoping to not overwrite my data or app data. Not sure if USERDATA will overwrite it or not.

I'm only wondering if it hardware based because I recently noticed it won't fast charge, and when connecting it to a charger sometimes the charge time would be ridiculously long, 6 hours or so also. It just started with this. A few weeks ago the cable got hit while it was charging. Broke the cable but the port still worked.

Yesterday I got caught in the rain. I didn't get totally soaked, but I'm wondering if water didn't get in my pocket just right to get in the port. I blew a small, real small, amount of water out of it when I felt it keep restarting in my pocket. I dried it out with a dryer and removed the back cover. I didn't find any evidence of water inside. Today I removed the board with the port and took a good look at it and there was a very slight bit of corrosion in a spot. I cleaned it up with contact cleaner and reinstalled it but no change. I ordered another board but it won't be here till Tuesday.

 

[mustang7757]

That phone has a water resistant IP68 and the charging Port has gasket that is water resistant.

Taking the phone apart breaks the IP 68 certification so you can't trust it anymore near water .

Have the device inspected by a Samsung Experience store or send it in before you do any more damage.

Again the reason I'm asking you try unlock firmware to see if it's hardware but it's been open so not sure .

Flashing stock firmware is pretty straight forward on Samsung devices.

I don't have the device in my hand I'm going based off what your telling me.

 

[SPVFD47]

Thanks Mustang. I'm not so concern with the IP rating at the moment as I am with the data. I also noticed that when I plug the charging cable in after it completely dies, the charging indicator appears, but there's no percentage or a time to completely charged.

 

[mustang7757]

Thanks Mustang. I'm not so concern with the IP rating at the moment as I am with the data. I also noticed that when I plug the charging cable in after it completely dies, the charging indicator appears, but there's no percentage or a time to completely charged.

I'm thinking that's why you can't flash it because something damaged.

 

[SPVFD47]

It does say that is was successful in Odin, but as mentioned previously I did not flash USERDATA. I the new board is scheduled to arrive tomorrow. I'll swap and see if maybe that's the reason it won't boot to anything except the download menu.

 

[mustang7757]

It does say that is was successful in Odin, but as mentioned previously I did not flash USERDATA. I the new board is scheduled to arrive tomorrow. I'll swap and see if maybe that's the reason it won't boot to anything except the download menu.

Yeah you never flash userdata
So the flash was successful but still not starting up ?

 

[SPVFD47]

Correct.

It must have been the bottom board. Got the new one today and installed it. It turned on once the battery was connected. Immediately noticed the screen change to to just the Samsung logo and then go into recovery mode. Restarted it and plugged the charger in and noticed it go immediately to fast charging. Started up and appears all my data is there. Plenty of new texts and notifications. Calls seems ok and goes in and out of 5G like before. 5G isn't the best where I am. Thanks for the help Mustang ! Oh, and I will try to get it to someone who can replace the gasket as soon as I can. I didn't see a gasket for the port, which the port itself isn't sealed. I've put it back in the case for now.

 

[mustang7757]

Correct.

It must have been the bottom board. Got the new one today and installed it. It turned on once the battery was connected. Immediately noticed the screen change to to just the Samsung logo and then go into recovery mode. Restarted it and plugged the charger in and noticed it go immediately to fast charging. Started up and appears all my data is there. Plenty of new texts and notifications. Calls seems ok and goes in and out of 5G like before. 5G isn't the best where I am. Thanks for the help Mustang ! Oh, and I will try to get it to someone who can replace the gasket as soon as I can. I didn't see a gasket for the port, which the port itself isn't sealed. I've put it back in the case for now.

Awesome
Glad it worked out , happy to hear that .