Attempted repair on N5 USB port, now phone screen is blank. - Nexus 5 Q&A, Help & Troubleshooting

Hi,
I recently purchased a replacement USB port part for my Nexus 5, as my original one had a bad connection on the port which made charging very tricky.
The new part.
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I followed a Youtube guide here: https://www.youtube.com/watch?v=qqCEXEmcj4Y
I did as was instructed, the only thing being an issue was that fitting the ribbon back into this port was a little tricky. (see the circled image below).
Put the phone back together. Powering on I feel the phone vibrate as if its powering on, but there isnt anything on the screen.
I hold the power button down to turn it off, but I dont get any vibration indicating it has force powered off.
Ive opened it all up and checked the work ive done, but still the same issue.
I thought it may be the new part I put in, so I swapped it for the old one.
Im concerned now that the port that i had to fiddle with to connect may of been damaged (although i was very careful). Or is there a more simple explanation where I need to connect it to a computer in an attempt to bring it back to life?
FYI I have just tried the vol keys and i can hear the vol change sounds. I may take the opportunity to back things up now.
Is it possible to do a factory reset without seeing the screen? I have a lock pattern that I obviously cannot see now either.
All help appreciated.
Thanks

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When trying to get into recovery mode I get the message it can't mound /dev/block/mmcblk0p1. I have tried several things I found here on the forums, including going back to stock UGJH2 but still the same.
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Ugh.
same problem, so far nothing is working
anyone found anything out as of yet?
when my phone was unable to enter download or recovery mode i was forced to make a jig.
it's 301Kohm of resistance soldered to pin 4 and 5 of a micro usb plug that you rip off a cable. works everytime. here i have 2x150Kohm + 1x1Kohm
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the red pins are the pins you need to solder to the resistors.
Code:
* * [COLOR="Red"]*[/COLOR]
* [COLOR="red"]*[/COLOR]

Samsund Galaxy Tab 2 10.1 no response from touch screen

The tablet had a smashed screen, but was working fine. I replaced the digitizer and it didn't respond to touch. I thought I may have gotten a bad one, so I put another new screen on it with the same result. I tried restoring to factory but it didn't change.
Anybody know what went wrong?
did you connected properly the digitizer flex to the logic_board connector ? prehaps it doesn't make contact
Blufx1 said:
The tablet had a smashed screen, but was working fine. I replaced the digitizer and it didn't respond to touch. I put another new screen on it with the same result. I tried restoring to factory but it didn't change.
Anybody know what went wrong?
Click to expand...
Click to collapse
So,Did you connect this thing to the main board?
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But,If you says no response...How do you do factory reset?Flash?
androidvillage said:
So,Did you connect this thing to the main board?
But,If you says no response...How do you do factory reset?Flash?
Click to expand...
Click to collapse
I've replaced many digitizers, so, yes, I connected the cable to the mainboard. Reset to factory doesn't require the digitizer. Just the power and volume buttons.
CoverTail said:
did you connected properly the digitizer flex to the logic_board connector ? prehaps it doesn't make contact
Click to expand...
Click to collapse
I checked and rechecked the connection. Easy to slip it in and even has a line to show when to stop. The lock lever holds it tight.

Problems Samsung Gear s3 R765V

Hello, my English is extremely bad so I will use google translator.
The essence of my problem is that my Samsung gear s3 R765V may suddenly turn off.
It does not depend on the battery charge, they just turn off. Then I start them again and they can at least spend a day working on the same charge. And so, twice a day, my watch died and got up again.
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The location and number of the capacitor I will indicate in the photo. Capacitor C446
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http: //i.piccy.info/i9/d797d6c2b3a732ad00dd8883c6fed22f/1583758808/662552/1366578/ Screenshot_2020_03_09_15_52_34_868_com_android_chrome.png
After that, the device started and turned off a couple of times. The master said that there might be a problem in the battery and could not help.
On the same day, I was able to once again start the clock, but they turned off after an hour. And did not turn on until the evening. Then I opened the back cover and looked at the place all the cable and they turned on again. And we worked all day on the same charge!
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1) The battery is charging and the screen lights up!
2) The buttons work, respond to clicks and show the charge level.
But the system itself does not start in any way. Although before turning off immediately started again.
I believe that the problem is in the capacitor, which was replaced, but not correctly selected!
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Hello, I am new to this forum and almost a complete beginner when it comes to Android.
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Could someone please help me and explain how I can do a factory reset on this phone? Thanks in advance!
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JPFeliciano said:
Does anyone know if this has a solution?
Click to expand...
Click to collapse
The eMMC needs to be replaced, I'm doing this as a professional, don't know if theres a store which can do this in your country.
Open the tab and see if the flex cable from the screen is still properly seated in the connector. If not, open the lock and reinsert the flex cable from the screen correctly and close the lock again.
uwe.stemke said:
Open the tab and see if the flex cable from the screen is still properly seated in the connector. If not, open the lock and reinsert the flex cable from the screen correctly and close the lock again.
Click to expand...
Click to collapse
You can see, that the download mode looks normal.
It's the typical picture, if theres no data readable from the param partition,
mostly defective eMMC.

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