[Android Q&A, Help & Troubleshooting] barindra75@gmail.com:
Hello experts,

Need help,

I have one android phone with a eMMc chip, It is stuck in bootlogo.

I can enter into bootloader, so I did

Then I booted in twrp tru

fastboot boot twrp.img

Now I checked the disk partition table thru fdisk /dev/block/mmcblk0

The print command gives me output

Command (m for help): [6np

Disk /dev/block/mmcblk0: 30785536 sectors, 2744M

Logical sector size: 512

Disk identifier (GUID): 98101b32-bbe2-4bf2-a06e-2bb33d000c20

Partition table holds up to 28 entries

First usable sector is 34, last usable sector is 30785502

Number Start (sector) End (sector) Size Code Name

1 131072 262143 64.0M 0700 modem

2 262144 262145 1024 0700 fsc

3 262146 262161 8192 0700 ssd

4 262162 263185 512K 0700 sbl1

5 263186 264209 512K 0700 sbl1bak

6 264210 265233 512K 0700 rpm

7 265234 266257 512K 0700 rpmbak

8 266258 267281 512K 0700 tz

9 267282 268305 512K 0700 tzbak

10 268306 269329 512K 0700 hyp

11 269330 270353 512K 0700 hypbak

12 270354 273425 1536K 0700 modemst1

13 273426 276497 1536K 0700 modemst2

14 276498 296977 10.0M 0700 splash

15 393216 393279 32768 0700 DDR

16 393280 396351 1536K 0700 fsg

17 396352 396383 16384 0700 sec

18 396384 398431 1024K 0700 aboot

19 398432 400479 1024K 0700 abootbak

20 400480 466015 32.0M 0700 boot

21 466016 531551 32.0M 0700 recovery

22 531552 4725855 2048M 0700 system

23 4849664 4980735 64.0M 0700 cache

24 4980736 5046271 32.0M 0700 persist

25 5046272 5048319 1024K 0700 misc

26 5048320 5049343 512K 0700 keystore

27 5049344 5050367 512K 0700 config

28 5050368 30785502 12.2G 0700 userdata

Command (m for help): [6n[Jm

However,

I have checked the same in a same model phone in all working condition, there it is

Number Start (sector) End (sector) Size Code Name

1 131072 262143 64.0 MiB 0700 modem

2 262144 262145 1024 bytes FFFF fsc

3 262146 262161 8.0 KiB FFFF ssd

4 262162 263185 512.0 KiB FFFF sbl1

5 263186 264209 512.0 KiB 0700 sbl1bak

6 264210 265233 512.0 KiB FFFF rpm

7 265234 266257 512.0 KiB 0700 rpmbak

8 266258 267281 512.0 KiB FFFF tz

9 267282 268305 512.0 KiB 0700 tzbak

10 268306 269329 512.0 KiB FFFF hyp

11 269330 270353 512.0 KiB 0700 hypbak

12 270354 273425 1.5 MiB FFFF modemst1

13 273426 276497 1.5 MiB FFFF modemst2

14 276498 296977 10.0 MiB FFFF splash

15 393216 393279 32.0 KiB FFFF DDR

16 393280 396351 1.5 MiB FFFF fsg

17 396352 396383 16.0 KiB FFFF sec

18 396384 398431 1024.0 KiB FFFF aboot

19 398432 400479 1024.0 KiB 0700 abootbak

20 400480 466015 32.0 MiB FFFF boot

21 466016 531551 32.0 MiB FFFF recovery

22 531552 4725855 2.0 GiB FFFF system

23 4849664 4980735 64.0 MiB FFFF cache

24 4980736 5046271 32.0 MiB FFFF persist

25 5046272 5048319 1024.0 KiB FFFF misc

26 5048320 5049343 512.0 KiB FFFF keystore

27 5049344 5050367 512.0 KiB FFFF config

28 5050368 30785502 12.3 GiB FFFF userdata

The only difference is,

Partition code, mine is 0700 in all partiions,

but in the working phone it is, 0700 or FFFF.

Rest all are same.

I cant mount /system, /data etc.

Deleting/reformatting partition in parted not working.

Can anybody explain the meaning of partition code ??

I searched in googled but could not find.

Which code means what ?? 0700 & FFFF.

What is the difference when code is changed ?

How to repartition ??