## Can you change recovery mode from simple to full with users working on the server?

Can you change recovery mode from simple to full with users working on the server?

While the server is changing the mode is the work of the users interrupted? If so, for how long.

Version: SQL server 2016

Thank you very much

## filevault – Is there a Recovery Key for encrypted external drives?

When you use FileVault, you are encrypting the entire boot volume, not just a single volume or folder.

If you’re looking for something where you can encrypt a removable volume (i.e. USB drive), take a look at VeraCrypt where it allows you to have both password and keyfile authentication. It’s also cross platform which is definitely a plus.

## Windows File Recovery – ‘winfr.exe’ is not recognized as an internal or external command, operable program or batch file

I just installed Windows File Recovery from the Store.

I’m running build 19041.329

And when I click on it, and enter the admin password, I get the error in the title.

How do I fix this?

## Hypergeometric Function Recovery By Taylor Expansion

Definition: $$(a)_0 = 1$$ and $$n ge 1 Rightarrow (a)_n = a(a+1)(a+2)cdots (a+n-1)$$.

$$textbf{Generalized Hypergeometric Functions}$$

Genus 1

begin{align} w_1 &= sum_i cfrac{x^i}{i!} cdot cfrac{(a_1)_i cdots (a_p)_i}{(b_1)_i cdots (b_q)_i} = {}_p F _q(vec a^p; vec b^q; x) end{align}

Genus 2

begin{align} w_2 &= sum_{i,j} cfrac{x_1^i}{i!} cdot cfrac{(a_1^1)_{i+j} cdots (a_{p_x}^1)_{i+j}}{(b_1^1)_{i+j} cdots (b_{q_x}^1)_{i+j}} cdot cfrac{x_2^j}{j!} cdot cfrac{(a_{1,1}^2)_i cdots (a_{{p_y},1}^2)_i}{(b_{1,1}^2)_i cdots (b_{{q_y},1}^2)_i} cdot cfrac{(a_{1,2}^2)_j cdots (a_{{p_y},2}^2)_j}{(b_{1,2}^2)_j cdots (b_{{q_y},2}^2)_j} = {}_{vec p} F _{vec q}(vec a^{p_x + 2 p_y}; vec b^{q_x + 2 q_y}; vec x^2) end{align}

Genus 3

begin{align} w_3 = sum_{i,j,k} &cfrac{x_1^i}{i!} cdot cfrac{(a_1^1)_{i+j+k} cdots (a_{p_x}^1)_{i+j+k}}{(b_1^1)_{i+j+k} cdots (b_{q_x}^1)_{i+j+k}} cdot \ cdot &cfrac{x_2^j}{j!} cdot cfrac{(a_{1,1}^2)_{i+j} cdots (a_{p_y,1}^2)_{i+j}}{(b_{1,1}^2)_{i+j} cdots (b_{q_y,1}^2)_{i+j}}cdot cfrac{(a_{1,1}^2)_{i+k} cdots (a_{p_y,2}^2)_{i+k}}{(b_{1,1}^2)_{i+k} cdots (b_{q_y,2}^2)_{i+k}}cdot cfrac{(a_{1,1}^2)_{j+k} cdots (a_{p_y,3}^2)_{j+k}}{(b_{1,1}^2)_{j+k} cdots (b_{q_y,3}^2)_{j+k}} cdot \ cdot &cfrac{x_3^k}{k!} cdot cfrac{(a_{1,1}^3)_i cdots (a_{{p_z},1}^3)_i}{(b_{1,1}^3)_i cdots (b_{{q_z},1}^3)_i} cdot cfrac{(a_{1,2}^3)_j cdots (a_{{p_z},2}^3)_j}{(b_{1,2}^3)_j cdots (b_{{q_z},2}^3)_j} cdot cfrac{(a_{1,3}^3)_k cdots (a_{{p_z},3}^3)_k}{(b_{1,3}^3)_k cdots (b_{{q_z},3}^3)_k} = {}_{vec p} F _{vec q}(vec a^{p_x + 3 p_y + 3 p_z}; vec b^{q_x + 3 q_y + 3 q_z}; vec x^3) end{align}

I have the Taylor series for $$f(t) = w_3(x_1(t), x_2(t), x_3(t)) = c_0 t^0 + c_1 t^1 + c_2 t^2 + cdots$$ and I want to recover $$a,b,p,q$$.

## recovery mode – Bricked phone Huawei P10 – adb and fastboot cannot detect (ubuntu 20.04)

I messed around with my phone (Huawei P10 VTR-L29) and unfortunately bricked it.

## what happened

To give you the whole story, I tried to root it, but during the root process I found out that the device is encrypted so I had to “rollback”. That worked fine and my phone was working ok with one issue – I wasn’t able to update firmware via regular system updates. I saw the update, but wasn’t able to download and install – it always ended up with some error.

That made me decide to reinstall the firmware from scratch. I followed general steps but yeah, I messed up.

## current status

The only thing I can see now is

But after a while it fails:

And I am stuck 🙁 I can’t get any further .. I tried to connect via ADB (but since I cannot get in the phone to enable USB Debugging (which might be the problem) I am unable to connect (nor ADB neither FASTBOOT can see the device).

I tried to create this file:

``````/etc/udev/rules.d/51-android.rules
``````

But when I run

``````sudo adb kill-server
``````

It’s still empty … I can’t even get to the “FACTORY RESET” by pressing and holding POWER + VOL:DOWN for some time; it always brings me back to the Huawei eRecovery

Do you guys have any idea how to fix this?
Or is that phone dead for good?

I don’t care about the data inside.. I would only love to make it work again

## recovery mode – Is there a way to save this tablet from bootloop?

I have several generic tablets running Jelly Bean 4.2.2. Recently one of them started bootlooping out of the blue. Unfortunately, the tablets have proprietary, stripped versions of android and recovery. There are no options to data reset in recovery and adb recovery –wipe_data or adb –wipe_data do not work. The tablet in loop can be accessed by adb but services such as activity manager or package manager are not running. Following is the top of logcat for both an operating tablet as well as the looper.

Bootlooper
——— beginning of /dev/log/system
I/RegionTag( 106): —————-running drmservice—————
I/RegionTag( 106): ———-serianno =X2QU82WEPG
I/RegionTag( 106): auto generate serialno,serialno = X2QU82WEPG
I/RegionTag( 106): detect keybox enabled
I/Vold ( 97): Vold 2.1 (the revenge) firing up
D/Vold ( 97): Volume flash state changing -1 (Initializing) -> 0 (No-Media)
E/Vold ( 97): ———get mtd_name is user—
E/Vold ( 97): ————find mtd name is user, num is 9—-
E/Vold ( 97): ———get mtd_name is user—
E/Vold ( 97): ————find mtd name is user, num is 9—-
I/Vold ( 97): Call notifyStateKernel No.1 in the file of VOlume.cpp
D/Vold ( 97): Volume sdcard state changing -1 (Initializing) -> 0 (No-Media)
D/Vold ( 97): Volume udisk state changing -1 (Initializing) -> 0 (No-Media)
E/Vold ( 97): Start Misc devices Manager…
D/Vold ( 97): Volume flash state changing 0 (No-Media) -> 1 (Idle-Unmounted)
I/SystemServer( 360): Entered the Android system server!
I/SystemServer( 360): Enabled StrictMode logging for UI Looper
I/SystemServer( 360): Waiting for installd to be ready.
I/SystemServer( 360): Enabled StrictMode logging for WM Looper
I/Installer( 360): connecting…
I/SystemServer( 360): Entropy Mixer
I/SystemServer( 360): Power Manager
I/SystemServer( 360): Activity Manager
I/ActivityManager( 360): Memory class: 64
I/UsageStats( 360): Deleting usage file : usage-20110101
——— beginning of /dev/log/main
D/dalvikvm( 360): GC_CONCURRENT freed 404K, 11% free 4277K/4776K, paused 2ms+2ms, total 12ms
D/dalvikvm( 360): GC_CONCURRENT freed 404K, 11% free 4277K/4776K, paused 1ms+1ms, total 9ms
D/dalvikvm( 360): GC_CONCURRENT freed 404K, 11% free 4277K/4776K, paused 2ms+2ms, total 12ms
D/dalvikvm( 360): GC_CONCURRENT freed 404K, 11% free 4277K/4776K, paused 2ms+2ms, total 12ms
D/dalvikvm( 360): GC_CONCURRENT freed 404K, 11% free 4277K/4776K, paused 2ms+2ms, total 12ms
D/dalvikvm( 360): GC_CONCURRENT freed 404K, 11% free 4277K/4776K, paused 2ms+2ms, total 11ms
D/dalvikvm( 360): GC_CONCURRENT freed 404K, 11% free 4277K/4776K, paused 2ms+2ms, total 12ms

Working tablet
——— beginning of /dev/log/system
I/RegionTag( 106): —————-running drmservice—————
I/RegionTag( 106): ———-serianno =J1VQXV9RYH
I/RegionTag( 106): auto generate serialno,serialno = J1VQXV9RYH
I/RegionTag( 106): detect keybox enabled
I/Vold ( 96): Vold 2.1 (the revenge) firing up
D/Vold ( 96): Volume flash state changing -1 (Initializing) -> 0 (No-Media)
E/Vold ( 96): ———get mtd_name is user—
E/Vold ( 96): ————find mtd name is user, num is 9—-
E/Vold ( 96): ———get mtd_name is user—
E/Vold ( 96): ————find mtd name is user, num is 9—-
I/Vold ( 96): Call notifyStateKernel No.1 in the file of VOlume.cpp
D/Vold ( 96): Volume sdcard state changing -1 (Initializing) -> 0 (No-Media)
D/Vold ( 96): Volume udisk state changing -1 (Initializing) -> 0 (No-Media)
E/Vold ( 96): Start Misc devices Manager…
D/Vold ( 96): Volume flash state changing 0 (No-Media) -> 1 (Idle-Unmounted)
I/SystemServer( 370): Entered the Android system server!
I/SystemServer( 370): Waiting for installd to be ready.
I/SystemServer( 370): Enabled StrictMode logging for UI Looper
I/SystemServer( 370): Enabled StrictMode logging for WM Looper
I/Installer( 370): connecting…
I/SystemServer( 370): Entropy Mixer
I/SystemServer( 370): Power Manager
I/SystemServer( 370): Activity Manager
I/ActivityManager( 370): Memory class: 64
I/SystemServer( 370): Display Manager
I/ActivityManager( 370): Enabled StrictMode logging for AThread’s Looper
I/SystemServer( 370): Telephony Registry
I/SystemServer( 370): Scheduling Policy
I/DisplayManagerService( 370): Display device added: DisplayDeviceInfo{“Built-in Screen”: 600 x 1024, 57.727 fps, density 160, 177.2093 x 168.89351 dpi, touch INTERNAL, FLAG_DEFAULT_DISPLAY, FLAG_ROTATES_WITH_CONTENT, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, rotation 0, type BUILT_IN, address null}
I/SystemServer( 370): Package Manager
I/PackageManager( 370): Need to read from backup settings file
W/PackageManager( 370): Cleaning up settings file /data/system/packages.xml

## How Data Recovery Software Work?

Have you ever accidentally deleted a file on your computer from the file you jump into the computer drive and formatted the memory card from the device? Or don’t you find your valuable file or malware attacked by your system? Fortunately, lost files and folders can often be recovered using data recovery software.

.

## recovery mode – Data recover with broken screen

yesterday my beloved OnePlus 3T fell and the screen cracked 🙁
At first half of it was still usable and visible, shame on me for not recovering the data I needed at that time. now the upper half is still usable but completely black, also the battery died without me noticing so it turned off.

Now I’m stuck with the following situation: phone is turned on, but the pin is preventing me from logging in (I can’t type the pin blindly as the bottom half of the screen doesn’t get touch inputs), the pc doesn’t recognize the phone beyond the driver “disk”, so sending commands via adb it’s not an option.

I tried booting in recovery mode with volume down+power and I think it got booted in recovery, but I don’t remember If I can use the buttons to navigate it. I pressed volume down 3 times to move to english, pressed power to select english, pressed power to select “install from adb”, pressed power to select “Ok”. at this point I expected the phone to be visible (assuming everything is set up correctly on the pc) when running “adb devices” on cmd, but it doesn’t. can anyone confirm that these steps are correct?

I’ll later try an otg cable and connect mouse/keyboard as a last resort.

I’m running out of ideas, so if anyone has any idea on how to recover files (don’t care about contacts and stuff) from the phone is more than welcome.

## macos – I deleted Macintosh HD – Data and now the computer won’t boot even in Recovery Mode

Okay all, I think I messed up really big time.

Was so excited and delighted today to see my brand spanking new MacBook Air arrive (running Catalina). Everything was wokring great; I started Migration Assistant to get it migrating over from my old computer and, after a little while for the preliminaries, it said it was going to be 6.5 hours. So I thought let’s not do this right now, so I can still use the old computer, and cancelled it.

That was my first mistake.

It wouldn’t let me go back to the original state of Migration Assistant; the users were already on the new computer. Okay, fine, I have to go into Utilities to find Migration Assistant on the new computer. But then when Migration Assistant did start up again, it would keep freezing in the early stages, stalled and not progressing – never even got to the part where it estimated time remaining. It did this in multiple ways, whether I was connected through WiFi or Ethernet, direct from the old Mac or through my Time Capsule.

So I figured I wanted to start clean. And this appears to be where I made the REALLY big mistake. I thought “well, I’ll just wipe the data so I can start clean, right?” I tried to followed instructions for a factory reset: went into Recovery Mode (cmd-R), entered Disk Utility, deleted the Macintosh HD-Data partition. I thought that what I was supposed to do next was delete the Macintosh HD partition too. But it wouldn’t let me do that because it was in use. I also tried to reinstall the US, and it wouldn’t let me do that either (also because it was in use). Okay, I thought, I’ll just restart and see what happens.

And now my brand new \$1800 computer is completely bricked.

The Apple logo appears, followed briefly by the start of the progress bar – and then I hear this whooshing sound, like ocean surf or a heavy breath, and it turns back off again… and then the Apple logo appears again and the same thing happened. Over and over on an endless cycle, just Apple and whoosh. I can sometimes get it to turn off by holding the power button, but turning it back on just gives me the endless cycle and whooshing again; I can’t get into Recovery mode. In the old days I would have tried sticking a paper clip in or some other option for a hard reboot, but there’s nowhere to do that.

Help! How can I get back to a brand-new computer with the old data smoothly migrated?

## No Recovery No System and Can’t access fastboot

I have a realme 1 and i accidentally locked bootloader (fastboot flashing lock) without flashing the stock recovery.

Now i can’t access fastboot or anything else.

I can connect the device to computer but the adb and fastboot commands won’t work as i can’t access fastboot.

Idk what to do. >.<