What are EFS, NVM, UMS etc? - GSM-Forum

manabb · 02-28-2014, 10:43

What are EFS, NVM, UMS etc?

I am a new user of BST dongle

Please

sutech · 02-28-2014, 11:20

EFS:
The EFS folder contains important info about your phone, as the IMEI number of the device is being located on the same. Furthermore, each time you decide to update your Android based Samsung handset with a custom ROM, or beta firmware, the EFS might get wiped out. When this happens, you will not be able to have the network connection enabled, meaning that you can no longer use your smartphone. Therefore, for avoiding these unpleasant situations, it is recommended to first backup the EFS along with all the other data stored on your device. A backup is always well-received, so don’t hesitate and perform the same before changing or applying something on your gadget.

NVM:
Non-Volatile Memory file used in the Samsung phones to store NV data, related to the nv_data.bin file.

jabbar arain · 09-20-2018, 11:06

i read your post it is very helpful to me now i can understand its meaning

02-28-2014, 10:43	#1 (permalink)
manabb No Life Poster Join Date: Dec 2013 Location: Bangladesh Posts: 709 Member: 2084680 Status: Offline Thanks Meter: 79	What are EFS, NVM, UMS etc? What are EFS, NVM, UMS etc? I am a new user of BST dongle Please

02-28-2014, 11:20	#2 (permalink)
sutech Freak Poster Join Date: Nov 2005 Location: Slovakia Posts: 194 Member: 201113 Status: Offline Thanks Meter: 63	EFS: The EFS folder contains important info about your phone, as the IMEI number of the device is being located on the same. Furthermore, each time you decide to update your Android based Samsung handset with a custom ROM, or beta firmware, the EFS might get wiped out. When this happens, you will not be able to have the network connection enabled, meaning that you can no longer use your smartphone. Therefore, for avoiding these unpleasant situations, it is recommended to first backup the EFS along with all the other data stored on your device. A backup is always well-received, so don’t hesitate and perform the same before changing or applying something on your gadget. UMS: USB Mass Storage NVM: Non-Volatile Memory file used in the Samsung phones to store NV data, related to the nv_data.bin file.

09-20-2018, 11:06	#3 (permalink)
jabbar arain Junior Member Join Date: Jul 2018 Posts: 4 Member: 2854785 Status: Offline Thanks Meter: 0	i read your post it is very helpful to me now i can understand its meaning