I can't open LoL with 8.21 on Mac

same problem after patch 8.21, I'm from NA, PC user

same problem

Cant open on PC for me

You are not alone bud

Same here...Stuck in the Opening logo...Riot...Cmon guys...WTF

SAME, IM A WINDOWS MSI LAPTOP USER. THOUGHT IT MIGHTVE BEEN JUST ME. I WAS PLAYING THIS GAME AROUND 12:30 AM, WENT TO BED... CAME BACK AT 1PM, GOT THE MSG TO UPDATE FOR NEW PATCH, BUT IT WOULDNT LOAD.. STAYED ON THE LOGO FOR AN HOUR... I THOUGHT MAYBE IF I JUST REINSTALL IT BE FIXED. NOPE. I TRIED THE HEXTECH REPAIR FOR EVERYTHNG, IT SAID EVERYTHING IS FINE. ITS CLEARLY NOT FINE, I GET STUCK ON THE LOGO FOR HOURS, SAYNG LOL IS NOT RESPONDING. I UPDATED ALL MY DRIVERS, RESTART MY LAPTOP, TROUBLESHOOT APP, RUN AS ADMIN... BUT NOPE SAME PROB. SO IT CANT BE ME CAN IT? NA SERVER BTW. THE ONE DAY IM OFF AND WANNA SPEND IT PLAYING LEAGUE I CANT. RIP (I DIDNT MEAN TO TYPE IN CAPS, BUT I WAS TOO LAZY TO CHANGE IT) WADUHEK*[sg-zephyr]*

same here

Same here (pc-user). Been looking at the opening logo for ~5 hours. Deleting various folders (RADS etc.) didnt fix it, reinstalling & reinstalling+registry cleanup didn't fix, hextech repair tool didn't do anything.

I've contacted the support and currently waiting for response.

Same here. Contacted them installed tons of new things and been talking to them all day...still no fix. I'm like...I just did like 4 hours of free work for riot... wtf

Same issue

ME TO RITO HELP US WE JUST WANT TO PLAY cries

After trying everything read everywhere. I tried something read on another thread that FINALLY worked for me. I have simply deleted the file that contains replays and highlights "for me it was in my.document/Leagueoflegends". After restarting the computer, it just simply worked.

Huh ... I must be the odd one out, my MacBook Pro is running League fine. I do have the new software update though, could that be part of it?

phew... thought I was the only one

Go to: C drive > Users > (username) > Documents > League of Legends and delete the entire League of Legends folder.

Note:* Doing this will delete your highlights/replays (which are stored in this folder). If you would like to keep your highlights/replays, just move the entire League of Legends folder to a different location like your desktop. This will have the same effect as deleting it.

I GOT LEAGUE TO WORK. After spending a few hours with customer service we couldn’t not figure out what was wrong. The work around: he sent me a copy of his fully patched League of Legends 12 GB folder. I Unzipped it and ran the client application as an administrator and it worked. TL:DR Get a patched League of Legends folder from a friend

Opening the client while disconnected from the internet somehow worked for me.

Try opening the Activity Monitor application and force quit any LoL apps that are still showing (this is different than doing force quit the normal way). Then try opening LoL again.

PS - I've been having off-and-on and problems with LoL on the Mac for a long time now. The support team has been pretty good at helping me resolve some things but I still have frequent issues. Glad to hear I'm not alone.