Where are the battery sourced from and what guarantees that I have the battery will perform better then say batteries on eBay/Amazon that are sell for like $15?

Reason I’m not going to Apple is because it’s very inconvenient for me.

⟐ Commented March 26, 2026 at 4:34 MST

⟐ Answered March 21, 2026 at 12:33 MST

i have experience on how to replace its nand flash, but usually the new nand needs to be erased and programmed in order to work.

but my case is if I have a working 32gb nand and I want to upgrade 256gb nand. Can i clone the contents of 32gb to the other memory? Would that work? Because i dont want to hit ios 15 because theres no jb for that version

⟐ Answered December 21, 2025 at 1:30 MST

On 3uTools trying to "Fix Flash", it stops at 34%, on the "Updating NAND Firmware", after the phone shows the Apple logo and the update progress bar, then it hangs for a minute then reboot and returns to restore mode.

20:55:10.254:  Requesting SHSH
20:55:11.234:  Enter Recovery Mode
20:55:15.774:  Sending AppleLogo
20:55:15.803:  Sending Ramdisk
20:55:24.207:  Sending DeviceTree
20:55:24.222:  Sending RestoreSep
20:55:24.350:  Sending KernelCache << reboot to restore mode with the "Quick Flash"
20:55:32.333:  Restoring
20:55:34.497:  Sending RootTicket
20:55:34.501:  Waiting for NAND
20:55:34.514:  Updating NAND Firmware << reboot to restore mode with "Fix Flash" after 1 minute.

The battery was replaced 5-6 years ago, can this be battery related or a NAND failure?

Noticed that from uTools, if I launch a standard "Quick Flash" the phone reboot and goes back to restore mode after the "Sending KernelCache".

If I use the "Fix Flash" mode, it reaches the "Updating NAND Firmware" before going back into restore mode after 1 minute and no visible progress on the bar.

⟐ Commented October 01, 2025 at 4:54 MST

⟐ Answered August 26, 2025 at 0:22 MST

⟐ Commented June 26, 2025 at 12:31 MST

⟐ Commented May 15, 2025 at 2:23 MST

I've got an iPhone 6s Plus that's playing up. I replaced the battery on it a while ago after the original failed (was draining too fast even when deep sleeping). I went with the battery sold by Replace Base in the UK. It seemed like they would sell decent replacement batteries.

Unfortunately, while the fast draining on idle has stopped, the phone has other problems now. It will randomly start lagging badly when trying to use it. You can barely tap anything when the lag happens. I used an app to check CPU usage and I see it's pegged at 100%. Battery starts draining rapidly as well.

It could go days without having this issue. It just comes on suddenly and when it does, it makes the phone unusable. You have to connect it to a charger to get the lag to disappear.

The battery seemed fine at 1st, then after maybe a few months this issue began.

Is this a bad battery? I've also noticed that when the phone 1st boots from a no power state, I'll see really low percentage (like 2-4%). After a few seconds, it'll jump to a higher value. It did this from the start, but I ignored it because the phone appeared to be working fine.

This looks like a case of a bad battery to me, but just making sure. If it is a bad battery, does anyone know of a seller that sells quality batteries that don't have problems? I've tried 2 replacement batteries so far and both have had issues. The 1st caused the phone to reboot all the time. The 2nd (the Replace Base one) has the issues I've described in this post.

⟐ Commented April 20, 2025 at 13:39 MST

⟐ Answered March 05, 2025 at 17:53 MST

⟐ Commented February 09, 2025 at 14:00 MST

⟐ Commented January 20, 2025 at 9:02 MST

⟐ Commented December 27, 2024 at 3:02 MST

Last night, I dropped my phone (protected by a case) but my charger broke. I have a spare one that I decided to use but I woke up this morning and it was at the same percentage, 6%. Now it's completely stuck at 2%. The phone keeps restarting every few minutes, if it goes to 1% it'll jump back to 2 after it restarts. It seems I can't let it die at this point which is weird.

I had the battery replaced a couple of weeks ago, so it's brand new. Could it be the charger? But if so, why is it keep restarting?

Many thanks to anyone who can help or give some insight.

⟐ Answer edited December 24, 2024 at 5:19 MST

I have a serious problem with my girlfriends iPhone 6S Plus,

I will try to be short and informative as much as I can so I wont make you tired reading this topic.

She got a certified refurbished iPhone 6S Plus from Amazon and the battery was messed up, I decided to buy her a new one and put it on ( iFixit) her screen once she told me stoped working for about 10 minutes and than start working again, just for reference,

so after the repair the touchscreen stoped working permanently, not just for 10 minutes but for ever.

Let me make sure that I have changed in the past many iPhone Batteries so I have a lot of experience doing that,

Before I took the screen off I took off the old battery than I got the screen for no more than 90 degrees radius and start taking off the connectors using my tools safely,

putting them back in and changing the battery I realized that there were no touch at all to the phone,

I assumed that the screen its probably messed up so I literally bought a new screen unit which arrived just today ( iFixit ) and the screen is still not working,

Cleaned the connectors and the logic board with Isopropyl alcohol 97% Clean

and safely dried it, realized that its still not working,

I am so sad and desperate about the situation with the phone right now and I need your help, I truly need someones help, I can provide detailed pictures from the logic boards condition in case someone needs them to get an idea.

Thank you so much for your time and help.

⟐ Answered December 23, 2024 at 3:43 MST

⟐ Commented November 19, 2024 at 20:21 MST

⟐ Commented November 16, 2024 at 19:32 MST

⟐ Commented September 24, 2024 at 17:13 MST

I replaced the battery like six months ago with an ifixit battery kit (YOU SHOULD BUY A KIT) for around 25$ and it worked fine before my mom bought it with her.

⟐ Commented September 16, 2024 at 14:14 MST