我绝对需要恢复存储在闪存(转储内部存储器)中的数据。我不知道它是否可以正常启动,因为主要问题是没有更多的视频显示可用于诊断(没有视频,也没有LED可以反馈)。这意味着我无法更改平板电脑配置,例如大容量存储设置,与计算机设置的连接,开发人员USB调试设置,OEM解锁设置等。
参考:
三星Galaxy Tab A 9.7(SM-T550 / T555 OF主板,2016年版本)
我正在研究Linux Ubuntu 18.04
[我认为我通过使用音量调低+中央按钮+电源按钮成功地启动了“大容量存储模式”并启动了“下载模式”,因为当它插入计算机时,我注意到“ dmesg”发生了变化输出和“ lsusb”输出(请参见下面的日志)。因此,我认为我的标签仍然有效,并且仍然可以找到一种检索我的数据的解决方案。
[我尝试了很多网络建议,但仍然被阻止:adb,fastboot,heimdall,jmtpfs,mtp-client ...无效(跟踪在下面)。
如果允许的话,我将准备刷新专门用于恢复的自定义引导程序。
大容量存储模式
lsusb输出:
Bus 001 Device 008: ID 04e8:685b Samsung Electronics Co., Ltd GT-I9100 Phone [Galaxy S II] (mass storage mode)
dmesg输出:
[Nov 9 17:50] usb 1-5: new high-speed USB device number 8 using ehci-pci
[ +0,157812] usb 1-5: New USB device found, idVendor=04e8, idProduct=685b, bcdDevice= 3.10
[ +0,000008] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0,000005] usb 1-5: Product: SAMSUNG_Android
[ +0,000004] usb 1-5: Manufacturer: SAMSUNG
[ +0,000004] usb 1-5: SerialNumber: 49dca9f70e4c53d2
[ +0,000938] usb-storage 1-5:1.0: USB Mass Storage device detected
[ +0,002892] scsi host5: usb-storage 1-5:1.0
[ +1,007634] scsi 5:0:0:0: CD-ROM SAMSUNG File-Stor Gadget 0001 PQ: 0 ANSI: 2
[ +0,000733] scsi 5:0:0:1: Direct-Access SAMSUNG File-Stor Gadget 0001 PQ: 0 ANSI: 2
[ +0,001277] sr 5:0:0:0: Power-on or device reset occurred
[ +0,002037] sr 5:0:0:0: [sr0] scsi3-mmc drive: 0x/0x cd/rw tray
[ +0,000007] cdrom: Uniform CD-ROM driver Revision: 3.20
[ +0,000613] sr 5:0:0:0: Attached scsi CD-ROM sr0
[ +0,000224] sr 5:0:0:0: Attached scsi generic sg2 type 5
[ +0,000532] sd 5:0:0:1: Attached scsi generic sg3 type 0
[ +0,004911] sd 5:0:0:1: Power-on or device reset occurred
[ +0,002433] sd 5:0:0:1: [sdc] Attached SCSI removable disk
在下载模式下启动后
lsusb输出:
Bus 001 Device 007: ID 04e8:685d Samsung Electronics Co., Ltd GT-I9100 Phone [Galaxy S II] (Download mode)
dmesg输出:
[ +18,232055] usb 1-5: new high-speed USB device number 7 using ehci-pci
[ +0,156784] usb 1-5: New USB device found, idVendor=04e8, idProduct=685d, bcdDevice= 1.00
[ +0,000008] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ +0,000005] usb 1-5: Product: MSM8960
[ +0,000004] usb 1-5: Manufacturer: Sasmsung
其他尝试和配置
在大容量存储模式下,我尝试安装sdc设备,但发生错误:
mount -o rw /dev/sdc /tmp/media
mount: /tmp/media: no medium found on /dev/sdc.
lsblk命令向我显示rom分区。
#lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
[...]
sr0 11:0 1 1024M 0 rom
#lsblk -S
NAME HCTL TYPE VENDOR MODEL REV TRAN
[...]
sr0 5:0:0:0 rom SAMSUNG File-Stor Gadget 0001 usb
从亚行(在两种模式下:)>
adb devices List of devices attached * daemon not running; starting now at tcp:5037 * daemon started successfully # adb devices List of devices attached # adb --version Android Debug Bridge version 1.0.39 Version 1:8.1.0+r23-5~18.04 Installed as /usr/lib/android-sdk/platform-tools/adb
从快速启动(在两种模式下:)>
#fastboot --version fastboot version 1:8.1.0+r23-5~18.04 Installed as /usr/lib/android-sdk/platform-tools/fastboot #fastboot list < waiting for any device >
从带有gitlab master分支的heimdall的上一生成版本,带有或不带有简历选项,它将失败。
Heimdall工具在大容量存储模式下显示:
# ./heimdall detect ERROR: Failed to detect compatible download-mode device
Heimdall工具在下载模式下产生结果:
./heimdall print-pit --verbose --no-reboot --resume Heimdall v1.4.2 Copyright (c) 2010-2017 Benjamin Dobell, Glass Echidna http://www.glassechidna.com.au/ This software is provided free of charge. Copying and redistribution is encouraged. If you appreciate this software and you would like to support future development please consider donating: http://www.glassechidna.com.au/donate/ Initialising connection... Detecting device... Manufacturer: "Sasmsung" Product: "MSM8960" length: 18 device class: 2 S/N: 0 VID:PID: 04E8:685D bcdDevice: 0100 iMan:iProd:iSer: 1:2:0 nb confs: 1 interface[0].altsetting[0]: num endpoints = 1 Class.SubClass.Protocol: 02.02.01 endpoint[0].address: 82 max packet size: 0010 polling interval: 09 interface[1].altsetting[0]: num endpoints = 2 Class.SubClass.Protocol: 0A.00.00 endpoint[0].address: 81 max packet size: 0200 polling interval: 00 endpoint[1].address: 01 max packet size: 0200 polling interval: 00 Claiming interface... Setting up interface... Beginning session... ERROR: libusb error -7 whilst receiving bulk transfer. Retrying... ERROR: libusb error -7 whilst receiving bulk transfer. Retrying... ERROR: libusb error -7 whilst receiving bulk transfer. Retrying... ERROR: libusb error -7 whilst receiving bulk transfer. Retrying... ERROR: libusb error -7 whilst receiving bulk transfer. Retrying... ERROR: libusb error -7 whilst receiving bulk transfer. Releasing device interface...
我添加了新的udev规则:
cat /etc/udev/rules.d/51-android.rules SUBSYSTEM=="usb", SYSFS{idVendor}=="04e8", SYSFS{idProduct}=="685d", MODE="0666" sudo service udev restart
在大容量存储模式下,当我按下选项卡的电源按钮时发生了异常事件。我认为我的系统尝试打开MTP设备,但失败了(请参阅以下dmesg输出):
----> I push and release power button: [ +26,196370] usb 1-5: USB disconnect, device number 12 [ +13,591551] usb 1-5: new high-speed USB device number 13 using ehci-pci [ +0,158256] usb 1-5: New USB device found, idVendor=04e8, idProduct=6860, bcdDevice= 4.00 [ +0,000008] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ +0,000005] usb 1-5: Product: SAMSUNG_Android [ +0,000005] usb 1-5: Manufacturer: SAMSUNG [ +0,000003] usb 1-5: SerialNumber: 49dca9f70e4c53d2 [ +2,030173] usb 1-5: USB disconnect, device number 13 [Nov 9 18:53] usb 1-5: new high-speed USB device number 14 using ehci-pci [ +0,157760] usb 1-5: New USB device found, idVendor=04e8, idProduct=685b, bcdDevice= 3.10 [ +0,000009] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ +0,000005] usb 1-5: Product: SAMSUNG_Android [ +0,000004] usb 1-5: Manufacturer: SAMSUNG [ +0,000004] usb 1-5: SerialNumber: 49dca9f70e4c53d2 [ +0,000939] usb-storage 1-5:1.0: USB Mass Storage device detected [ +0,000410] scsi host5: usb-storage 1-5:1.0 [ +1,017966] scsi 5:0:0:0: CD-ROM SAMSUNG File-Stor Gadget 0001 PQ: 0 ANSI: 2 [ +0,001356] scsi 5:0:0:1: Direct-Access SAMSUNG File-Stor Gadget 0001 PQ: 0 ANSI: 2 [ +0,001555] sr 5:0:0:0: Power-on or device reset occurred [ +0,002676] sr 5:0:0:0: [sr0] scsi3-mmc drive: 0x/0x cd/rw tray [ +0,000644] sr 5:0:0:0: Attached scsi CD-ROM sr0 [ +0,001648] sr 5:0:0:0: Attached scsi generic sg2 type 5 [ +0,000266] sd 5:0:0:1: Attached scsi generic sg3 type 0 [ +0,003360] sd 5:0:0:1: Power-on or device reset occurred [ +0,003040] sd 5:0:0:1: [sdc] Attached SCSI removable disk
然后出现一个弹出窗口:
“错误:无法打开MTP设备” [usb:001,013]“”]
损坏原因
:[上周,当我将电池卡上的充电器插头插上一个晚上(5V持续2A)时,我注意到“早安”时出现了热量问题。我直接拔掉电源,因为它很热,让它冷却。然后,当我尝试将其打开时无任何反应(无信号)。
[首先,我尝试通过更换电池解决问题,但未进行任何更改(-20欧元)。然后,我尝试通过更换Micro USB /充电器Dock Port进行修复,但也没有发生任何变化(-10€)。
我已经采取了一些电压措施来分析问题的根源:当将电源提供给µUSB连接器时,如果将LCD屏幕连接器插入主板,则电池电压将从4.17V降至2.20V,并且屏幕底部的热量会增加(关闭至前按钮)。但是,如果未插入LCD屏幕连接器,则不会干扰电池电压(4.17V)。
因此,我认为液晶显示器损坏是损坏的,并且损坏了。我不想更改它,因为它几乎花费了新标签的全价(150€)。
我绝对需要恢复存储在闪存中的数据(转储内部存储器)。我不知道它是否可以正常启动,因为主要问题是没有更多的视频显示可帮助...
请执行以下步骤来恢复您的数据] >>当LCD屏幕关闭时(我认为如果屏幕完全损坏并且什么也无法显示,它也可以使用。)> [1]安装TeamWin恢复映像