Samsung 840 EVO SSD Data Recovery
At Zero Alpha Data Recovery, we offer professional data recovery for Samsung 840 EVO SSDs. This popular SATA SSD was widely used for system upgrades but has known issues with data retention, firmware bugs, and performance degradation over time. If your 840 EVO is no longer detected or your data has become inaccessible, we can help. We also accept mail-in jobs Australia-wide, so you can send your drive to us from anywhere.
Samsung 840 EVO SSD Data Recovery common problems
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Drive not recognized by the system
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Slow performance or random read/write errors
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Firmware corruption, often causing boot issues
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Sudden power loss leading to data corruption
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File system corruption or RAW partition
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Accidental deletion or formatting of data
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Bad sectors or failing NAND cells
Samsung 840 EVO SSD MZ7TE250HMHP 250GB Data Recovery Caselog
Samsung 840 EVO SSD MZ-7TE500 500GB Data Recovery Caselog
31May23: This SSD would originally give a full ID but it was slow to detect. After a map was made to recover data it bricked. We had to use shorting points and loader to unlock it again.
Samsung 870 EVO SSD MZ-77E2T0 2TB Data Recovery Caselog
25Jul23: This ssd failed after the power was turned off at the wall accidently while the mac was running. It doesn't have smart supported but does pass a read test. The problem now is it reads black sectors once it hits a bad sectors and the firmware fails.
Selected family......................... : Samsung 840 EVO series
Controller.............................. : S4LN045X01-8030
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Techno mode key......................... : Techno mode error: unexpected error: Device error detected - Device error detected - Device error detected - Device error detected
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SSD status:
SSD is in ready state................... : Yes
SSD is locked........................... : No
SSD is in Safe Mode..................... : Yes
Loader uploaded......................... : No
Logical access is possible.............. : No
Physical access is possible............. : No
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Loader uploading
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  Code name............................... : 840EVO.ldr
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  Write HDD microcodeÂ
  SSD not ready (1)
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  SSD status:
  SSD is in ready state................... : Yes
  SSD is locked........................... : No
  SSD is in Safe Mode..................... : No
  Loader uploaded......................... : Yes
  Logical access is possible.............. : Possibly
  Physical access is possible............. : Possibly
  Operation aborted
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Loader is not uploaded! Some of the functions are not available!
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Reading password information............ : Ok
USER password........................... : No
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S.M.A.R.T. checking..................... : Enable S.M.A.R.T. command sending error Device error detected "ABR"
Error scenario.......................... : Success
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Look ahead.............................. : Granted
Write cache............................. : Granted
Error recovery control.................. : Supported
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Test "Reading" started
Initial LBA............................. : 0
Final LBA............................... : 3 907 029 167
UDMA Mode set error Device error detected "ABR"
Read with a single command.............. : 2048
Reading method.......................... : Regular
Data exchange mode...................... : UDMA133
Save data read to file.................. : No
Save defects............................ : No
ERROR! LBA : 5 173 248 DMA Ext Reading error Device error detected "ABR;BBK" UDMA data CRC error
Error scenario.......................... : Success
ERROR! LBA : 5 175 080 Read sectors (5 175 080-1) error HDD Redynes timeout (200)
Error scenario.......................... : Success
ERROR! LBA : 5 175 081 Read sectors (5 175 081-1) error Device error detected "UNC"
Error scenario.......................... : Success
ERROR! LBA : 5 175 082 Read sectors (5 175 082-1) error Device error detected "UNC"
Error scenario.......................... : Success
ERROR! LBA : 5 175 083 Read sectors (5 175 083-1) error Device error detected "UNC"
Error scenario.......................... : Success
ERROR! LBA : 5 175 084 Read sectors (5 175 084-1) error Device error detected "UNC"
Error scenario.......................... : Success
ERROR! LBA : 5 175 085 Read sectors (5 175 085-1) error Device error detected "UNC"
Error scenario.......................... : Success
ERROR! LBA : 5 175 086 Read sectors (5 175 086-1) error Device error detected "UNC"
Error scenario.......................... : Success
ERROR! LBA : 5 175 087 Read sectors (5 175 087-1) error Device error detected "UNC"
Error scenario.......................... : Success
ERROR! LBA : 5 175 088 Read sectors (5 175 088-1) error Device error detected "UNC"
Error scenario.......................... : Success