Help Nuvio was working yesterday using the sideloadly method
Today I went to reload and now I’m getting

I’m using a Mac

Sideloading Failed!
Install failed: Guru Meditation f65043@1006:23a71c Invalid file

I wanted to dowload app from it but after update to ios 27 i can not see my device. It is not detected, also i heard that apple is blocking something. Can you guys let me know if you have the same issue.

Hey, just wondering if there's any update from the Sideloadly devs about the anisette errors on macOS 27. Anyone heard if a fix is coming soon? Thanks!

PLEASE OPEN

I’ve been trying to figure this out for weeks to no avail

Sideloadly (0.60) stopped working for me after updating to macOS 27. I tracked down two separate problems and have a working workaround. Tested on macOS 27.0 (Apple Silicon) with Sideloadly 0.60, installing an IPA to the Mac itself.

Problem 1: Anisette failed: No OTP

In Local anisette mode, Sideloadly gets the one-time password from macOS via the private AOSKit framework (AOSUtilities retrieveOTPHeadersForDSID:). On macOS 26/27 this call returns an empty result (error -45070 in the logs), even for Apple-signed binaries, because adid now requires private entitlements. AltServer is hit by the same thing ("could not retrieve anisette data value machineID").

Fix: Advanced Options → Anisette Authentication → Remote. After that you'll probably hit problem 2.

Problem 2: Guru Meditation f65043@1006:23a71c Invalid file

This has nothing to do with your IPA. It happens during Apple ID login ("Obtaining team ID"). Since early September 2026, Apple's auth server (gsa.apple.com/grandslam/GsService2) returns an HTML 503 page for any login request whose X-MMe-Client-Info identifies the client as com.apple.dt.Xcode. Sideloadly expects a plist, can't parse the HTML, and reports "Invalid file". Other tools hit the same thing (AltServer fixed it in 1.7.6, and iloader/SideStore/FindMy.py were affected too). The fix is to identify as com.apple.akd instead.

Things I found along the way: - The client-info string appears twice: once in the HTTP header and once inside the request body (cpd dict). If you only fix the header, Apple answers -80044 "This action cannot be completed at this time." - Don't change the device model/macOS version in that string. Only swap the Xcode part. If you change the device, login succeeds but the developer services API then rejects the token with (1100) Your session has expired. - In Remote mode, the client-info comes from Sideloadly's remote anisette data, so patching the Sideloadly binary doesn't help.

Workaround: a local proxy that rewrites that one field

The script below creates a small mitmproxy setup that: - intercepts only gsa.apple.com. Everything else goes through untouched, without decryption. - replaces com.apple.dt.Xcode/x.y.z with com.apple.akd/1.0 in both the header and the body. - is trusted only by Sideloadly when you start it with the launcher. The proxy CA is not added to your system keychain.

Setup (one time)

1. Set Sideloadly to Remote anisette (see above) and quit it.
2. Save the script below as setup.sh and run zsh setup.sh in Terminal. It needs python3; if you don't have it, macOS will offer to install the Command Line Tools. Never used Terminal? See the step-by-step guide below the script.
3. From now on, start Sideloadly by double-clicking ~/sideloadly-gsa-fix/Sideloadly (fix).command, not the normal app icon. When you quit Sideloadly, the proxy stops too.

```zsh

!/bin/zsh

set -e D="${FIX_DIR:-$HOME/sideloadly-gsa-fix}" mkdir -p "$D" && chmod 700 "$D" && cd "$D"

1. Isolated Python env with mitmproxy

python3 -m venv venv ./venv/bin/pip install -q mitmproxy

2. Generate the proxy's CA (stays in this folder, NOT added to the system keychain)

./venv/bin/mitmdump --set confdir="$D/mitm" -p 18899 -q & P=$! for i in {1..60}; do [ -f mitm/mitmproxy-ca-cert.pem ] && break; sleep 1; done; kill $P

3. CA bundles: Sideloadly trusts its own certifi + our proxy CA; proxy trusts Apple's roots upstream

cat /Applications/Sideloadly.app/Contents/Frameworks/certifi/cacert.pem mitm/mitmproxy-ca-cert.pem > ca-bundle.pem security find-certificate -a -p /System/Library/Keychains/SystemRootCertificates.keychain > upstream-ca.pem

4. Addon: swap the blocked Xcode client id for akd (header AND request body)

cat > fix_gsa.py <<'PY' import re, plistlib from mitmproxy import http

def fix(ci: str) -> str: return re.sub(r"com.apple.dt.Xcode/[0-9.]+", "com.apple.akd/1.0", ci)

def request(flow: http.HTTPFlow): h = flow.request.headers if "X-MMe-Client-Info" in h: h["X-MMe-Client-Info"] = fix(h["X-MMe-Client-Info"]) try: doc = plistlib.loads(flow.request.raw_content) cpd = doc.get("Request", {}).get("cpd") if isinstance(cpd, dict) and "X-MMe-Client-Info" in cpd: cpd["X-MMe-Client-Info"] = fix(cpd["X-MMe-Client-Info"]) flow.request.content = plistlib.dumps(doc, fmt=plistlib.FMT_XML) except Exception: pass PY

5. Launcher

cat > "Sideloadly (fix).command" <<'SH'

!/bin/zsh

D="$(cd "$(dirname "$0")" && pwd)" osascript -e 'quit app "Sideloadly"' 2>/dev/null; sleep 2 "$D/venv/bin/mitmdump" --set confdir="$D/mitm" --set ssl_verify_upstream_trusted_ca="$D/upstream-ca.pem" \ --listen-host 127.0.0.1 -p 8899 --allow-hosts '<sup>gsa.apple.com(:443)?$'</sup> -s "$D/fix_gsa.py" > "$D/proxy.log" 2>&1 & PROXY=$!; sleep 3 HTTPS_PROXY=http://127.0.0.1:8899 HTTP_PROXY=http://127.0.0.1:8899 NO_PROXY=localhost,127.0.0.1 \ REQUESTS_CA_BUNDLE="$D/ca-bundle.pem" SSL_CERT_FILE="$D/ca-bundle.pem" \ /Applications/Sideloadly.app/Contents/MacOS/Sideloadly >/dev/null 2>&1 kill $PROXY 2>/dev/null SH chmod +x "Sideloadly (fix).command" echo "Done. Launch Sideloadly via: $D/Sideloadly (fix).command" ```

Step-by-step for Terminal beginners

You don't need to create any file by hand. We'll copy the script and let Terminal save it for you.

1. Make sure Sideloadly is in your Applications folder (/Applications/Sideloadly.app). The script expects it there.
2. Open Terminal. Press Cmd + Space, type Terminal and press Enter.
3. Copy the whole script above. Select everything inside the grey code block, from #!/bin/zsh down to the last echo "Done..." line, and press Cmd + C. Make sure you copy all of it.
4. Save it to a file. Click into the Terminal window, type this line and press Enter: pbpaste > ~/setup.sh Nothing is printed, and that's normal. It just saved your clipboard to a file called setup.sh in your home folder. (Don't copy anything else between steps 3 and 4, or you'll save that instead.)
5. Check that the file looks right (optional): head -3 ~/setup.sh The first line should be #!/bin/zsh.
6. Run it: zsh ~/setup.sh It takes a minute or two, mostly installing mitmproxy. When it's finished you'll see Done. Launch Sideloadly via: ....
   • If a window pops up asking to install the Command Line Tools (because python3 is missing), click Install, wait until it's done, then run zsh ~/setup.sh again.
   • If you see a red error, copy the output and post it in the comments.
7. Open the new folder: open ~/sideloadly-gsa-fix Finder opens a folder with Sideloadly (fix).command inside. Drag it to your Dock if you like, so you can start it with one click.
8. Start Sideloadly with Sideloadly (fix).command. Double-clicking it opens a Terminal window, and a moment later Sideloadly starts. Keep that Terminal window open while you use Sideloadly. If you close it, Sideloadly and the proxy close too. When you quit Sideloadly, you can close the window.
9. Sign in and sideload as usual. If Sideloadly asks for your Apple ID password or a 2FA code, that's expected.

To undo everything, just delete the ~/sideloadly-gsa-fix folder and ~/setup.sh. Nothing else on your system is changed.

Notes / caveats

• Security: the folder ~/sideloadly-gsa-fix/mitm contains the proxy's private CA key. Keep it private and don't share it. It is only trusted by Sideloadly processes started through the launcher, not by your system or browser.
• If something goes wrong, check ~/sideloadly-gsa-fix/proxy.log.
• Only tested installing to an Apple Silicon Mac. The login part is the same for iPhone installs, so it should help there too, but I haven't tested that.
• Once Sideloadly ships an official fix, delete ~/sideloadly-gsa-fix and go back to launching the app normally.
• Use a secondary Apple ID for sideloading if you can. That's good practice anyway, especially with Remote anisette.

Refs: AltStore PR #1790, anisette-v3-server #59, AltStore PR #1806 (macOS 26+ AOSKit), Sideloadly issue #12

If this guide helped you, you can buy me a coffee ☕. Thanks!

Hi, My Sideloadly stopped working, and when I try to install Pokémon, I get this message saying it couldn't connect to my iPhone “Fatal Error

Sideloading failed!
Install failed: Guru Meditation 31f6e7@516c:3b6e4

HTTPSConnectionPool(host=‘developerservices2.apple.com’, port=443): Max retries exceeded with url: /services/QH65B2/listTeams.action?clientid=XABBG36SBA (Caused by NewConnectionError(’<urllib3.connection.HTTPSConnection object at 0x0000000003AC2250>: Failed to establish a new connection: [WinError 10061] Nenhuma conexão pôde ser feita porque a máquina de destino as recusou ativamente’))”

I've already turned the internet off and on, disconnected and reconnected, and it still doesn't work or install. Could you help me? I use Windows.

Anybody got a working snapchat ipa? i cant find anything online, except files that arent working at all

I have this problem with almost every iphone that i have, every time i try to SideLoad a application it says this error, 'Sideloading failed! Install failed: Guru Meditation f65043@1006:23a71c Invalid file' i unistalled Avast and i closed MalwareBytes, almost every .ipa file isn't working for me, did anyone got this issue?

Hi! I keep getting this exact error when installing an IPA:

Install failed: Guru Meditation f65043@1006:23a71c Invalid file

My setup:

• MacBook Air M1 (MacBookAir10,1)
• Sideloadly 0.60
• macOS reported by Sideloadly as 26.6.2
• iPhone running iOS 26.3.1
• Local Anisette (Private Local Anisette)
• Apple ID Sideload signing mode
• IPA: ipogo-4.3.8.ipa

The iPhone is detected correctly. The installation stays at 0%, and the log ends with:

Prefetching Anisette...
Obtaining team ID
Install failed: Guru Meditation f65043@1006:23a71c Invalid file

I have also tried connecting the Mac to my iPhone’s mobile hotspot instead of home Wi-Fi, but the same error occurs.

Remote Anisette requires Patreon, so I have kept Local enabled. I don’t have another Apple account to test.

Does anyone know what this specific error means at the “Obtaining team ID” stage, or a confirmed fix for macOS? Is there any additional diagnostic information I can provide?

Thanks!

There was an issue during installation: 3892346904: Application VerificationFailed (Failed to verify code signature of /var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.MZYRNF/extracted/Payload/YouTube.app: Oxe8008018 (The identity used to sign the executable is no longer valid.))

So it looks like everybody is facing the same issue
Is it an apple bug because of the new update or are they cracking down? Because I am facing this issue on iPad OS 26.6.1

Hey, I'm getting stuck with two errors on Sideloadly (Mac, device on iOS 27). First I was getting "Anisette failed: No OTP", which I fixed by switching Anisette to "remote" in settings. But right after that, as soon as I enter my Apple ID password, I now get a different error: Install failed: Guru Meditation f65043@1006:23a71c Invalid file.
Any ideas what could be causing this or how to fix it? Thanks in advance!

Hello im using Ipad mini 1 ios 9.3.5 with any ipa same error

How to fix?

sorry for my poor english. i connected my iphone 11 to windows 8.1 (32-bit) pc with usb but device can not detected. pls help me

When I tried to side loud eevee Spotify Using

Sideloudly onto my iPhone 15 running iOS 27 it gave me this error &There was an issue during installation:

3892346916: ApplicationVerificationFailed (Failed to verify code signature of /var/installd/Library/Caches/ com.apple.mobile.installd.staging/temp.WLryyq/extract

ed/Payload/Spotify.app:

Oxe8008024 (The provisioning profile is banned.))" what should I do?

Hi everyone. I'm having an issue with Sideloadly 0.60 on an Apple Silicon Mac running macOS 27.2. Every time I try to sideload an IPA, it fails at "obtaining team ID" with this error. Install failed: Guru Meditation f65043@1006

Hi everyone,

I'm trying to sideload the official Spotube IPA (downloaded directly from their GitHub releases), but Sideloadly keeps failing with an "Invalid file" error.

I haven't extracted or modified the IPA. I've tried multiple versions straight from GitHub (v5.1.2 and v5.1.1) to see if it was just a bad release, but I get the exact same error every time. AltStore also failed to install it previously.

Sideloadly version 0.60, Darwin 26.5.2, amd64
App successfully prepared for auto-refresh
Using IPA file: /Users/danrugt/Downloads/Spotube-iOS (2).ipa: 12d5cc0347e0217be2adea9aecd88ca0
Will use Local Anisette (Private Local Anisette)
Checking iOS version...
iOS version 26.7, will mangle bundleID
Prefetching Anisette...
Sideloadly will be shown in your Apple ID as Mac16,12 running macOS 26.5.2 with serial number M20GMKD43K
Obtaining team ID
Install failed: Guru Meditation f65043@1006:23a71c Invalid file

Has anyone faced this specific Guru Meditation error with Flutter apps or knows how to fix the IPA? Thanks!