Tecno K7 Stuck on logo after format userdata
 

So have this set and was switched on but frozen,can reboot to recovery with vol+ and power.Tried wipe cache and would just freeze at wiping cache,force restart again then tried wipe,would freeze at formatting data.So put it on machine,set read boot info nicley and rebooted.I then used format data tab and phone was stuck on initial tecno with android at the bottom logo.Waited the 5 minutes and no change.

So force resetted it but would no longer go to recovery but was in a bootloop like would shpw supported API:3 then no command screen then supported API:3.Managed to reboot it and passed the first boot screen and it stuck on the second tecno logo screen.What could cause this team?

Below is the log of the format data tab:

Action : Format UserData.
Selected 0-By CPU:ELBRUS
Exe version: NCKBox AndroidMTK 2.9.7
Phone must be off with battery inside.
Battery must be charged
Please insert USB cable now...
For some phones need to keep "VOL-" button untill inserting USB cable.
For some phones need to keep "VOL+ and VOL-" button untill inserting USB cable.
For some phones need to keep "VOL+" button untill inserting USB cable.
Detected(3) : MediaTek PreLoader USB VCOM (Android) (COM3)
[3] \\?\usb#vid_0e8d&pid_2000#6&3b3f6816&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
Boot mode: Preloader
BBCHIP: 6580 0 ca00
Using Algo 1.
Phone detected...Please wait
Sending DA agent, please wait...
----------------------------------------------------
BaseBand CPU :MT6580
BaseBand CPU Secure Version : FF
BaseBand CPU Bootloader Version : 01
----------------------------------------------------
INT RAM: 128 KB SDRAM
EXT RAM: 1 GB DRAM
----------------------------------------------------
EMMC: (114Gb+8192Mb) KSI 0x454841454538
EMMC FW VERSION: 01:00:00:00:00:00:00:00
EMMC CID: 700100454841454538 : 00000000000000
EMMC UA SIZE: 0x390000000
BOOT STYLE: EMMC BOOT
FULL LENGTH: 0x390c00000 [14.262 GB]
Status: USB_HIGH_SPEED
Detecting high speed port, wait......
If driver not installed, install high speed port driver.
If not need high speed port, disable it.
After repeat opperation.
Detected(4) : MediaTek DA USB VCOM (Android) (COM4)
[4] \\?\usb#vid_0e8d&pid_2001#6&3b3f6816&0&2#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
Detecting format adress....wait!
Starting generic userdata format...!
Partition: cache begin: 0xca800000 length: 0x1c800000
Partition: userdata begin: 0xe7000000 length: 0x2a7f80000
Phone can start slow at first power on
If phone stuck on logo, perform wipe from recovery.
First start can take up to 5 min on some phones.
Wait untill phone will start charging.
[0]All done

:eek:

In your case, can be emmc chip damaged, some sectors can be read only or unaccesible.
Userdata is encripted/decripted on each power on/power off and posible checksum of encripted userdata not math and phone go in bootloop.